Heidi snorkeling in the water giving a thumbs up tot he camera. She has a yellow mask and blue snorkel in a black dry suit. The water is clear and blue and there's a rock face on the side.

Iceland’s Snorkeling Between Tectonic Plates: Silfra Fissure Ultimate Guide

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EVER IMAGINED SWIMMING THROUGH A CRACK IN THE EARTH’S CRUST?

Snorkeling in Iceland between two tectonic plates in one of the world’s clearest bodies of water sounds like a dream, but is it as unique as it seems?

View from inside the Silfra fissure, looking up through the water and seeing two snorkelers between the sides of the earth

While Silfra offers a truly unforgettable experience, there are a few myths about this extraordinary dive spot that might surprise you. From gear to logistics, and even the thrill of navigating waters that are just above freezing—get ready for an unforgettable adventure that will offer you a sense of wonder.

Let’s explore what makes this experience so special, and whether it really lives up to the hype!




Overview of Snorkeling in Iceland

Iceland offers one of the most unique snorkeling experiences in the world, where visitors can glide through crystal-clear waters in a deep crack into the Earth.

Silfra, located in Thingvellir National Park, is a stunning fissure that allows snorkelers to explore the boundary between the North American and Eurasian continents.

Despite the cold-water temperatures, Iceland’s natural beauty and geological significance make snorkeling here an unforgettable adventure that draws travelers year-round.

Two people smiling at the photo with the Silfra fissure in the background, blurred a little, with snorkelers
After finishing our snorkel, we watched other snorkelers start their swim through the Silfra Fissure

A Glimpse into Iceland’s Natural Wonders

Iceland’s geological landscape is shaped by extreme geothermal and volcanic activity. The country sits on the Mid-Atlantic Ridge, where the North American and Eurasian tectonic plates are slowly drifting apart. This movement creates visible rifts in the land, such as the Silfra fissure, making Iceland a hotspot for geologically curious travelers.

Silfra is located in Thingvellir National Park, which is not only a geological wonder but also a UNESCO World Heritage site, significant for its cultural history as the site of Iceland’s first parliament. The park offers visitors the chance to explore both the rich heritage and striking natural features of Iceland in one visit.

Iceland’s frigid temperatures don’t deter visitors. The Silfra fissure remains a year-round attraction because of the dry suits provided, which help snorkelers stay warm in the glacial waters. The experience of snorkeling in the clear waters of Silfra is like swimming in another world, where you can feel the powerful geological forces beneath you.

Some unique facts about Iceland:

  • Iceland is one of the most geologically active countries in the world, with volcanoes, geysers, and hot springs that shape its landscape.
  • The Mid-Atlantic Ridge runs directly through Iceland, making it one of the few places where visitors can experience the power of tectonic plate movement.
  • The Silfra fissure has been slowly widening over time, adding to its geological significance.
View of the Silfra fissure showing two sides of the earth and water in between
While it looks unassuming above water, the Silfra fissure carries some magic underneath

Why Silfra is Special for Snorkelers

Silfra’s water is some of the clearest in the world. The glacial meltwater that feeds into the fissure is filtered through porous lava rock for up to 100 years, resulting in visibility often exceeding 100 meters (328 feet). This incredible clarity makes it possible to see underwater rock formations and vibrant algae with remarkable detail, creating an ethereal experience for snorkelers.

The dry suit system used in Silfra snorkeling makes the experience accessible even to those who have never snorkeled before. While previous experience is not necessary, it’s important to be comfortable in the water, as snorkelers will float for around 30 minutes in near-freezing temperatures. The dry suit provides insulation and comfort, allowing visitors to fully enjoy the experience, regardless of their skill level.

Guided tours are essential for snorkeling in Silfra, as they ensure both safety and education about the unique geological features. Guides lead snorkelers through the fissure, sharing information about the rift between the tectonic plates and the geological processes at play. These tours make it possible for everyone to appreciate the immense beauty and significance of the location.

Some key highlights of snorkeling in Silfra:

  • Silfra is one of the only places in the world where you can swim “between” two tectonic plates.
  • The clarity of the water allows for unrivaled visibility and a surreal underwater experience.
  • Visitors do not need prior diving or snorkeling experience to enjoy this unique activity, thanks to the professional guidance and dry suits provided.
Bright blue green waters and rocky earth under the surface of the water of the Silfra fissure
The special water in Silfra is from glaciers melting which is why it’s always cold

THRIFTY TRAVEL HACK: Iceland’s known for being expensive. To cut costs, stay at a local guesthouse, hostel, or Airbnb. These are typically cheaper since you’re sharing communal spaces. They can often be quite nice!

Silfra is most certainly a special place, but is it truly as unique as it claims, or just a myth waiting to be debunked?


Can You Really Snorkel Between Tectonic Plates?

Okay, real talk time…

We learn about tectonic plates growing up in school. The appeal of being “between continents” is mystical and magical and sounds impossible (like the movie, A Walk to Remember, when the main character expressed a goal to “be in two places at once.”)

But is this a factually accurate statement or just good marketing?

The Truth Behind the “Between Tectonic Plates” Myth

Understanding the Rift vs. the Space Between Plates
The marketing term “between tectonic plates” plays on a technical truth: Silfra is located within the rift zone formed as the North American and Eurasian tectonic plates drift apart.

This does not mean, however, snorkelers are precisely “in between” the plates. Rather, they explore a crack in the Earth’s crust caused by the plates’ gradual movement.

Sign showing the Silfra fissure and information about it

Why It’s Marketed as “Between Tectonic Plates”
Describing Silfra as “between tectonic plates” adds mystique, and it’s not entirely inaccurate—it’s just simplified.

The real intrigue lies in the rift’s dynamic nature: Silfra continues to widen, creating ongoing changes in the fissure’s shape and visibility.

This geologic activity keeps the environment unique and visually mesmerizing, with exceptional underwater rock formations.

Unique Geological Formations and Crystal-Clear Waters
Despite the myth, Silfra’s beauty and rarity are authentic.

Fed by glacial meltwater filtered through underground lava fields, Silfra’s visibility can reach over 100 meters, revealing dazzling colors and rock formations in intricate detail. These visuals make it a one-of-a-kind adventure in Iceland’s rugged, natural landscape.

Still curious to learn more about the tectonic plates in Iceland?
Check out this 4-minute video that aligns a good visual with the educational content.

Heidi, the author, facing away from the camera, standing and posing looking out at the Silfra fissure in the distance.
Overlooking the Silfra Fissure

Why Silfra is Still Worth the Hype?

YES!!!

Because it’s….

A One-of-a-Kind Adventure in Nature’s “Aquarium”

Silfra’s glacial waters are among the purest in the world, offering a snorkeling experience akin to diving in liquid glass. Each dive is unique due to the continuous plate movement, making it a memorable encounter with nature’s dynamic forces.  Visitors get to experience a phenomenon usually hidden to all but scientists and deep-sea divers.

Left photo shows diver in the water and right photo shows small shark in the blue green water of the Silfra fissure

And because it’s…

A Journey into Earth’s Tectonic “Drama

While not a literal swim between two plates, Silfra provides a rare window into the tectonic dance happening beneath our feet. Standing (or swimming) in a space actively widened by tectonic forces brings you closer to Earth’s geology in a way few other experiences can.

Silfra is definitely worth the hype.
So how do we make that (chilly) underwater dream a reality?

Heidi, the author, snorkeling in the suit, giving a thumbs up to the camera while in the Silfra fissure

Logistics of Getting to Silfra from Reykjavik

If you’re planning to snorkel or dive at Silfra Fissure, here’s a breakdown of the essential travel logistics from Reykjavik.

Silfra sits in Thingvellir National Park (you might see Thingvellir written as “Þingvellir”), an area rich in history and scenery, and is about 50 km (31 miles) from Reykjavik — around a 45-minute drive.

Heidi and her friend smiling at the camera with the famous rainbow road and building in the background of Reykjavik
The famous rainbow road in downtown Reykjavik

How to Get to Silfra

  • Driving by Car: Most visitors choose to drive from Reykjavik, either renting a car or using a private vehicle. The journey is straightforward, following Route 1 (the Ring Road) out of Reykjavik, then Route 36 to Thingvellir National Park.
  • Tour Options: For those without a car or looking for a guided experience, many tours include transportation from Reykjavik. These options generally cover both transport and entry fees, as well as all necessary diving or snorkeling gear.
  • Parking and Entry: Upon arrival, Thingvellir National Park has designated parking areas near Silfra. Note that there may be a small parking fee.

Thingvellir National Park and Silfra Location

  • Silfra’s Position Within the Park: Silfra Fissure is a short walk from the main Thingvellir Visitor Center. This part of the park is specifically designated for diving and snorkeling due to its unique geological structure and incredibly clear water.
  • Facilities and Amenities: Basic facilities are available near the dive site, including bathrooms and changing rooms for divers and snorkelers. The visitor center offers additional information on Thingvellir’s natural history, cultural significance, and details about Iceland’s geological wonders.
Two views of sunrise, one with a car parked looking to the water, and another showing closer to the water
The beautiful early morning drive to our meeting point for the 9am tour

THRIFTY TRAVEL HACK: Eat like a local! Cook some of your meals (maybe once or twice a day). Most grocery stores have affordable basics—try Bonus or Krónan supermarkets for the best deals

So now that you know it’s very accessible from the capital city, Reykjavik, let’s get some questions answered on when you should plan your trip.


Best Times for Snorkeling in Silfra

One of the most unique aspects of snorkeling in Silfra is that it’s an all-year-round activity. Unlike many outdoor adventures in Iceland (often designed for “summer” or “winter”), the visibility and geological features of Silfra remain incredible regardless of the season.

Whether you’re visiting during the long summer days or the enchanting winter months, you can experience the rift between two tectonic plates with the same stunning clarity and geological awe.

Weather Conditions by Season

Iceland’s weather can be unpredictable, but each season offers a distinct atmosphere for snorkeling in Silfra.

  • Summertime (June-August): This is when Iceland sees its mildest weather, with average temperatures hovering around 10-15°C (50-59°F), making it the most comfortable season for outdoor activities. However, it’s also the most crowded time, as many tourists flock to Iceland for the Midnight Sun and the warmer conditions. Be prepared for busier tours and longer wait times at popular sites like Silfra.
  • Winter (December-February): Winter in Iceland can be magical, as the landscape is often covered with snow and ice, creating a stark, beautiful contrast to the dark, clear waters of Silfra. While fewer tourists visit during this time, temperatures drop significantly, making the experience colder, but still accessible with the right gear. Winter offers a quieter, more serene experience, perfect for those seeking a peaceful adventure amidst Iceland’s stunning snowy landscapes.
  • Autumn and Spring: These seasons offer a happy medium with moderate weather and fewer crowds than the summer. Autumn (September-November) presents a vibrant fall foliage backdrop, while spring (March-May) is marked by the slow melt of snow and the beginning of Iceland’s lush landscapes emerging. Both offer a great balance between pleasant conditions and relative tranquility.

THRIFTY TRAVEL HACK: Visit during the spring (April-May) or fall (September-October) for cheaper accommodation and rental options while still enjoying Iceland’s stunning scenery.

Snorkeler swimming in the water away from the camera and another view of the blue green water of the Silfra fissure and snorkeler further away

Considerations for Cold Water Conditions

While Iceland’s above-ground weather can vary wildly from winter to summer, the water in Silfra remains cold year-round. It’s important to be prepared for these consistently chilly conditions to fully enjoy the experience.

  • Average Water Temperature: Silfra’s water temperature hovers between 2-4°C (35-39°F) year-round. While this might seem daunting, the water is refreshingly crisp and incredibly clear. The cold temperatures make it even more important to be prepared.
  • Importance of Dry Suits: Given the cold water, snorkeling in Silfra requires wearing a dry suit to maintain warmth (though you can find wetsuit options). These suits provide insulation and ensure that you stay dry while still being able to move freely in the water. Some operators also offer thermal layers underneath the dry suits for extra comfort.
  • Impact of Weather Conditions: The weather conditions above the water can significantly affect the overall snorkeling experience. On cold, windy days, you may feel the chill more intensely before and after entering the water. However, the dry suit helps mitigate this discomfort, ensuring that you can still experience the underwater beauty of Silfra in any season.
Individual snorkeling in the Silfra fissure with the blue green water and orange yellow earth crusts

In all, despite the cold water and weather challenges, Silfra remains an accessible and spectacular destination, offering unique experiences no matter the time of year.

THRIFTY TRAVEL HACK: Alcohol is expensive due to high taxes. If you want a drink, buy it duty-free at the airport or limit yourself to happy hours in Reykjavik, where you can find half-price drinks.


Logistics of Snorkeling (& Diving)

Snorkeling in Silfra is a manageable experience even for those new to cold-water environments or dry suits, largely thanks to the required guided tours.

These (mandatory) tours ensure that participants are equipped and instructed on using specialized gear, especially the dry suits that allow you to comfortably float in Iceland’s glacial waters.

For those interested in diving, Silfra also offers a unique adventure for experienced divers, provided they meet the additional requirements.

Snorkeling

All snorkeling tours at Silfra are led by certified guides who provide participants with necessary equipment and safety instruction. While you don’t need prior snorkeling experience, you do need to be comfortable swimming and following the guide’s directions in near-freezing temperatures.

  • Guided Tour Requirement: Because of the cold water, technical gear, and special location, you cannot snorkel at Silfra without joining a tour group, even if you’re experienced.
  • Basic Requirements: While no certification is required for snorkeling, you must know how to swim and be comfortable in the water. Most tours have minimum age and health requirements to ensure safety.
  • Eyewear: Standard glasses typically don’t fit under the snorkel mask, but you can wear contact lenses or request a prescription mask if available.
  • Difficulty and Safety: Tours typically last around 30-40 minutes. Dry suits offer buoyancy and warmth, making it easy for you to float along the fissure and enjoy the scenery, though you should be ready for the cold and to follow safety procedures.
Silfra fissure water looking very green with a snorkeler swimming

Wet Suit vs. Dry Suit Snorkeling

You might see some options to opt for a “wet suit,” though many tour companies will offer the dry suit (or even a choice between the two).  Choosing between a dry suit and a wet suit can shape your experience at Silfra.

Here are the key differences:

Dry Suit Snorkeling

  • Warmth and Protection: A dry suit seals at the wrists, neck, and ankles to keep you dry, allowing for added insulation layers underneath. This option is ideal for those who are more sensitive to cold.
  • Buoyancy: The air layer inside the dry suit adds buoyancy, helping you to float easily and enjoy a more relaxed experience.
  • Comfort: Though warm, dry suits can feel bulky and may restrict movement somewhat.
  • Best For: Those who prefer warmth and comfort, especially in colder environments like Silfra.

PRO TIP: Check out THIS VIDEO from Adventure Vikings for diving in Silfra and on how to put on a dry suit. It gives an amazing rundown of what to wear underneath, the layers, how tight it seals, and the accessories.

Wet Suit Snorkeling

  • Direct Exposure to Water: Wet suits allow a thin layer of water to enter, which your body warms up to create insulation. While they provide warmth, you’ll still feel an initial chill.
  • Flexibility: Wet suits are more flexible and less buoyant, giving you more freedom of movement and a slightly more immersive experience.
  • Best For: Adventurers who want to feel a direct connection with the cold waters and don’t mind the initial chill.

Most visitors choose dry suits due to the extreme cold, but wet suits offer an option for those who enjoy a more intense experience.

Diving at Silfra

Scuba diving in Silfra is an option for experienced divers who have dry suit certification, as the cold water and depth add an extra level of difficulty. Diving here provides a more intimate view of Silfra’s geological formations, going as deep as 18 meters (59 feet) in certain areas.

The water temperature is consistently around 2-4°C (35-39°F), making dry suit diving essential to safely explore these depths. This scuba diving tour in Silfra is best suited for those with cold-water diving experience who want to explore the fissure’s depths.

Though I just did the snorkeling, it appears that with the diving, you can get a little more up close and personal to the deep-water geological formations. 

Curious to learn more about the diving?
Watch this video on scuba diving between the tectonic plates in Silfra


Picking a Tour & Reviewing Companies

Choosing the right tour company for your Silfra snorkeling adventure is essential to ensure a safe, enjoyable experience. When evaluating tour companies, consider their experience, group size, included amenities, and cost.

My recommendation would be to consider cost and inclusions (transportation and photos), as well as check that they offer dry suits.

After entering the Silfra fissure water, snorkeling group posing for the camera with the stairs in the background

Best Tour Companies Offering Silfra Snorkeling

TLDR: When doing research on picking a tour for when I went to Iceland as well as later when writing content for this point, I’ll say that there are SO many great tour options. I rarely see disappointment from anyone in reviews.

Here are some of the most popular tour operators for snorkeling at the Silfra Fissure:

  • Adventure Vikings (*The tour group we used*)
    • Pros: Local guides with deep knowledge of Icelandic history and geology, private tour options, GoPro photos with Google drive link
    • Cost: $140–190
  • Arctic Adventures
    • Pros: Includes dry suits, available year-round
    • Cost: $130–170
  • DIVE.IS
    • Pros: Experienced guides, small group sizes, GoPro photo options
    • Cons: Higher price point, often booked months in advance
    • Cost: $150–200
  • Troll Expeditions
    • Pros: Lower price point, includes warm undergarments, small groups
    • Cons: Limited availability during peak seasons
    • Cost: $120–180

What to Look for in a Tour Review

When reading reviews, focus on:

  • Tour quality: Are guides experienced? Is the group size small for a more intimate experience?
  • Safety protocols: Does the company prioritize safety, especially for first-time snorkelers and those unfamiliar with dry or wetsuits?
  • Extras: Do they offer photos, transportation from Reykjavik, or other perks?
  • Booking availability: Can you book in advance, or are they frequently sold out?

Again, one key aspect in your booking will be to consider if transportation is included or if you need to meet on location. You do NOT want to overlook that critical detail especially if you aren’t planning on renting a car.


General Itinerary, Logistics, and What to Expect

When you book a snorkeling tour at Silfra, you’ll be guided through an experience that blends stunning underwater landscapes with logistical simplicity.

HERE’S WHAT YOU CAN EXPECT SO YOU’RE BEST PREPARED:

Two snorkelers in the Silfra fissure water and a youtube caption saying "watch this video! how to wear a dry suit"
Watch this Adventure Vikings video on wearing a dry suit! It’ll give more context on the information below

What to Bring/Pack

  • Clothes for under your dry suit: Even if you’re coming in the summer months, it’s still necessary to dress warmly under the dry suit. You’ll want tight layers like leggings and thermal layers. If you’re coming in the winter, dress more warmly.
  • Phone/camera: A waterproof camera is ideal if you want to capture the moment; some operators also offer GoPro photo options for an extra charge. You can definitely bring your phone as well if you have a waterproof case with a lanyard that seals very well. This is my favorite option for all water sports (and other adventures like via ferrata).
    • Note: Pay attention to the gloves in the video and consider that it will be very challenging to manually adjust your phone to take photos while underwater.
  • Warm clothing post-snorkel: Although the dry suit keeps you dry, there could be a little water that seeps in or perhaps your clothing underneath will feel quite chilly. Bring extra layers or a change of clothes, depending on what else you are doing after the snorkeling experience.
  • Food/snacks (optional): Depending on your itinerary for the day, you might want to consider packing snacks for after the snorkeling experience so you can keep adventuring on the road.

What’s Included

  • Equipment: Tours typically provide dry suits, masks, snorkels, fins, and gloves. Be sure to follow the guide’s instructions on how to wear your gear properly.
  • Photos: Some companies include or offer GoPro photos as part of the tour, giving you a chance to relive the experience.

Meeting Point & Pickup

  • Pickup: Many tours offer pickup from Reykjavik. Be sure to confirm the pickup location and time when booking.
  • Meeting Point: Most tours meet on site at the Thingvellir National Park parking lot, just a short walk to the Silfra Fissure.
  • Transportation: If you prefer driving, rental cars are available for getting to the meeting point, but check the details as some tours may include transport from Reykjavik.

What to Expect on the Tour

  • Tour Duration: Most snorkeling tours last about 3–4 hours in total, including gear fitting, transport, and preparation. The snorkeling itself typically lasts around 30-45 minutes.
  • Difficulty: While Silfra snorkeling is accessible to beginners, you’ll need to be able to swim and be comfortable in cold water (2-4°C). Your guide will ensure safety, but having basic swimming ability is a must.
  • Temperature: The water at Silfra is always cold, usually between 2–4°C (36–39°F). You’ll be wearing a dry suit to stay warm, which offers full-body protection against the cold.

What you Wear when you Snorkel

  • Clothing (under your dry suit): You’ll want tight layers that are comfortable for you to move around in. I wore athletic leggings and a long sleeve athletic shirt with a turtleneck collar. This allowed me to slip into my dry suit very easily while having a warmer “base layer.”
  • Dry Suit: From head to foot, this dry suit is essential for you to stay warm and dry. Follow the guide’s instructions for getting into your dry suit before the tour. There’s a specific way to suit-up and your guides will assist you each step of the way.
  • Footwear: The dry suit has boots attached at the bottom of the suit (that you slide on as one piece). These boots will protect your feet, so there’s no need for additional shoes. However, it’s recommended to wear warm socks.
  • Accessories: After your warm clothing layers and dry suit, you’ll also be given fins (to go over the dry suit boots), a neck strap (guides will help put this on for you to seal over the dry suit head piece), a snorkel and goggles, as well as gloves (more like mittens) to keep your hands warm.
  • Note: Do NOT wear jewelry or makeup (those are the wrong kind of accessories)
Heidi and her friend wearing the dry suits standing about posing for the camera before about to enter the water of the Silfra fissure

Minimum Age and Health Requirements

  • Age: Most companies have a minimum age of 12 years old for participation. Check the tour specifics as some companies might have age limits on the upper end for safety.
  • Health: The activity requires a reasonable level of physical health, so make sure to communicate any health issues to the operator before booking.

Additional Information

  • Facilities: There are toilets on-site at Thingvellir National Park for use before or after your snorkeling adventure.
  • Food: There are no food options directly at the tour site, so it’s a good idea to eat before or after the tour in Reykjavik.
Building for the bathroom with a directional sign near the Silfra fissure meeting point

Cancellation Policy

Most tour companies offer flexible cancellation policies, but be sure to check in advance, especially during peak seasons, as weather conditions can affect the tours.

Now that you’re set with the logistical elements on what to expect, here’s a run-through of my personal snorkeling experience in Silfra!


My Personal Experience

Getting to snorkel in the frigid temperatures and floating through the deep fissure while having ultimate blue clarity in the waters was truly a unique experience.

Iceland is “weirdly wonderful.” That’s at least how I would describe it.

This snorkeling in Silfra was just one of the cool adventures out of many that Iceland has to offer. Here’s what I can share about picking a tour and what the experience was like.

Picking a tour company

I was exploring Iceland with my best friend, and I often planned the logistics of our travels.  After doing research a month or two in advance, I decided to pick a tour with Adventure Vikings.

We would have a car rental to drive around Ring Road, so I wanted to pick a tour company that had us meeting in Silfra (no pickup from Reykjavik) and also one that included receiving photos of the snorkeling afterwards. 

It was very easy to book through GetYourGuide and there was some flexibility on what tour date and time we could select.  We opted for the first slot of the morning at 9am so we could start venturing around to other spots later in the day.

THRFITY TRAVEL HACK:  If you book through Viator or GetYourGuide, try starting on your travel credit card shopping portal and/or activate Rakuten.com or TopCashback for additional cashback! If you have an education email, try StudentBeans for discounts.

For 2 adults in mid-October the price was around $300, and it was very easy to view the meeting location and arrive on site. 

Arrival to the Silfra Fissure

Since we booked an early slot, it meant we had a beautiful and scenic sunrise drive from the Reykjavik area out to the national park.  Ensure you eat a proper breakfast and consider bringing some snacks for after the snorkeling experience especially if you’ll be doing other excursions in the afternoon. 

The morning was crisp and clear, and we took the walk from the parking lot to the meeting location just a short distance away.  There will be several tour vans, so ensure you’re equipped with your tour details to find your designated company.

Walking down a barren looking road towards the Silfra fissure
You can’t see the fissure much while walking over to it, making it even more mysterious

We checked in, signed a waiver, and then got briefed with information on what to expect. 

Gearing up in the Dry Suit

The guides assisted each member in finding the correct size for drysuit and the guides instruct you very well on how to put everything on. You’ll want to wear warm, tight clothing underneath. 

For clothing, I opted to wear athletic leggings and my thicker long sleeve athletic shirt with a turtleneck.  Since my clothing selection was more of a tight fit, it was very easy to start sliding on the first dry suit layer on top.

The guides will help zip you up (since the zipper is on the back).  There’s also an attached hood for around your neck, head, and face.  There’s also a specific neck strap that helps to seal off water coming in from that area of the suit (though it’s a bit uncomfortable). 

After they zip you up, the guides give you gloves to wear as well as your own snorkeling mask, snorkel, and fins.

Once everyone had their gear, we did a short and easy walk to the starting point to enter the water.  There are different tour groups so you might need to wait just a little bit. 

View of the Silfra fissure with snorkelers entering the water from the stairs
Walking down the stairs to first get in the water, put on the fins, and start swimming around

To be honest, I was feeling like the neck strap was a little uncomfortable.  The longer we were waiting, the more I felt mildly claustrophobic (and then extra warm).  Thank goodness it wasn’t actually warm outside in the middle of October!

I was relieved when we finally got into the water as it felt so much better.

Wearing the Dry suit in the Water

The tour guide will instructor your group to get down into the ladder and into the water.  This is also when you’ll put your fins on and the guides can assist with this.

There’s a very specific section when you first get in the water where you swim around a little as the guide assists everyone with their fins and makes sure the group is okay.

We were informed that just this initial section of the water in the fissure was the space to assess your comfortability.  Our guide said once we swam past a certain point and traveled more into the fissure, no one is allowed to turn back.  We did have one person in the group who, within this initial section, decided not to complete the experience. 

Snorkelers bobbing in the water in the Silfra fissure

I had never worn a dry suit before. Yes, it keeps you very dry and quite warm!

When we were provided our gloves, we were told that these are “mostly dry” gloves.  Ironically, the more you move (like when you swim with your arms), the more that cold water seeps in through the gloves and you can feel a bit cold.  You’ll spend time mostly floating as there is a very mild current that allows you to drift forward through the fissure. 

Also, your face goes a bit numb, but that is understandable and it’s really not bothersome at all.  It’s exposed skin and it IS very cold water, so this makes sense.

Snorkeling Photos in the Water

The guides will often have a couple spots in the fissure where they do their best to get individual pictures.  You can give a thumbs up to the camera!

If you have your own phone or Go Pro, then of course you can spend lots of time floating and getting your own images and content!  I imagine some people like to swim and dive down a bit deeper if they’re comfortable.

If you look at the photos online and also here on my blog, you’ll notice that many photos are of people at the surface of the water which makes sense since that’s how you snorkel.

If you want any photos taken of you where you dive down a bit more to be fully submerged, just talk with your guide in advance about any particular shots you want to see if they can accommodate.

The walk back after exiting the water was quick and easy. We drank some hot chocolate to decompress and chuckle a little at how our faces were perhaps mildly puffy post-cold-water-snorkeling.

Exiting The Fissure and Receiving Photos

The walk back after exiting the water was quick and easy. We drank some hot chocolate to decompress and chuckle a little at how our faces were perhaps mildly puffy post-cold-water-snorkeling.  

Our tour guide went around to ensure we had taken a photo of the business card clearly indicating the website and code we’d need to retrieve the photos.

Heidi and her friend holding cups of hot chocolate after the tour.  The second image shows the business card of "Adventure Vikings"

It was super easy to retrieve the photos that our guides took.  We took a photo of the business card with the link and the information for our specific tour.  It took perhaps a day (or however long they told us)

Overall Thoughts

Our guides were also super transparent indicating that though technically we weren’t swimming between two tectonic plates (they pointed out where North America and European plates were), that they still cite it as good for business (and to keep it on the DL….sorry!). 

Here’s what I’ll say….

Though yes, it’s a great marketing angle, it’s still cool regardless on the technicalities.  The visibility is incredible, the cold-water experience is unique (since I’ll usually stick to tropical destinations), and the fact that it’s a crack in the Earth does sincerely make for some interesting formations underwater. 

Since we were still very close to the fissure site for the snorkeling, I’d recommend walking back in that direction to take more photos from the surface. The surrounding area is beautiful and doesn’t even lead you to believe there’s the beautifully clear water and fissure like how you can see it from inside the water.

There are also some great hiking spots nearby. You don’t even need to move your car! Just walk around and explore.

Overall, was it worth it?

If you have the budget for it then yes, I would say so.  But if not, I think you could skip it.  There’s a TON that Iceland has to offer especially for cheap or even for free. 


 FAQs

Ready to uncover more about Iceland’s epic underwater world?

Even after reading through the information above and watching the dry suit video, you might still be wondering about snorkeling itself as well as the cold-water experience in the Silfra Fissure of Iceland.

View of the Silfra fissure looking down onto it

1. What dry suit sizes are available for snorkeling in Silfra?

The dry suits provided for snorkeling in Silfra come in a range of sizes, from XS to XXL, ensuring a fit for various body types. It’s important to confirm your size ahead of time with the tour operator, as the dry suit should be snug for warmth and safety during the experience.

2. Can I wear glasses while snorkeling in Silfra?

Glasses cannot be worn inside the dry suit hood, so it’s recommended to wear contact lenses for the tour. If you are unable to wear contacts, some operators may allow the use of prescription masks or provide other solutions. It’s best to check with your guide about available options.

3. Can I go snorkeling in Silfra if I’m pregnant?

Pregnancy is generally not recommended for snorkeling in Silfra due to the physical demands and the cold water temperature. It’s important to consult with your doctor before participating in such activities, as they may advise against it depending on your pregnancy stage and health.

4. Can I take photos during the Silfra snorkeling tour?

Yes, you can bring a camera! However, keep in mind that your hands will be inside the dry suit gloves, so you’ll need to use a waterproof camera or a GoPro that can be attached to you. It’s best to check with your tour operator about any specific rules regarding equipment.

5. Do I need to know how to swim or be in good physical condition?

While you don’t need to be an expert swimmer, basic swimming ability is required as you’ll be floating in cold water for about 30 minutes. It’s also important to be in good general health since the water temperature in Silfra can be as cold as 2°C (36°F). If you have concerns about your health, it’s best to consult with a doctor before booking.

6. How cold is the water in Silfra, and does it freeze?

The water in Silfra remains cold year-round, typically between 2-4°C (36-39°F). It does not freeze due to its constant flow from glaciers and underground rivers. You’ll be wearing a dry suit, which keeps you insulated from the cold, though it’s still recommended to wear warm layers underneath.

7. Is snorkeling in Silfra safe, and has anyone ever died?

Silfra snorkeling is generally safe, with guides ensuring that all participants are properly suited and briefed. However, like any outdoor activity, there is always a slight risk. There have been no recent reports of fatalities, but safety precautions should always be followed, and it’s important to listen to your guide.

8. Can I snorkel or dive independently at Silfra?

Snorkeling or diving at Silfra requires a guide, as the conditions can be challenging, and safety is a priority. Guides ensure you are properly equipped and briefed before entering the water. If you’re dry suit certified but don’t have your card, you’ll likely need to take part in a guided experience.

9. Are there other places to scuba dive in Iceland?

Yes, you can scuba dive at Bjarnagjá, another site part of the tectonic rift between the North American and Eurasian plates. This smaller pool offers unique diving opportunities, but Silfra remains the most popular and famous spot due to its clearer visibility and access to the continental divide.

10. Why is the water in Silfra so clean?

The water in Silfra is incredibly clear due to its origin. It comes from the Thingvellir National Park’s underground aquifers, filtered through lava rock, which naturally purifies it. The constant flow of meltwater from glaciers further enhances the clarity, making Silfra one of the clearest dive and snorkeling sites in the world, with visibility reaching up to 100 meters (328 feet).

Bright blue waters inside the Silfra fissure

11. Is snorkeling in Silfra worth it in Iceland?

Yes! Snorkeling in Silfra is definitely worth it if you’re interested in unique and breathtaking experiences. It’s the only place in the world where you can snorkel between two tectonic plates—the North American and Eurasian plates. The pristine waters, stunning underwater landscapes, and the opportunity to be in one of the world’s top 10 dive sites make it an unforgettable adventure.

12. How long does Silfra snorkeling last?

A typical Silfra snorkeling tour lasts about 30-45 minutes in the water, but the entire experience may take a few hours, including briefing, gear fitting, and the time it takes to reach the site. While the actual time spent snorkeling is relatively short, it offers plenty of opportunities to take in the stunning underwater views and enjoy the rare experience of swimming between tectonic plates.

13. Is snorkeling between the tectonic plates at Silfra one of the world’s top 10 dive sites?

Yes, Silfra is often ranked among the world’s top 10 dive sites. Its unique position between the North American and Eurasian tectonic plates, coupled with the crystal-clear water, draws snorkelers and divers from around the globe. The chance to swim between two continents, along with its natural beauty, makes it a standout location for underwater enthusiasts.


Exploring More of Iceland’s Natural Wonders

While snorkeling between tectonic plates at Silfra is an unforgettable experience, Iceland has so much more to offer, from striking volcanic landscapes to charming coastal villages.

Whether you’re looking to stay around Reykjavik or venture along the famous Ring Road, the Land of Fire and Ice is full of incredible sights and adventures to uncover.

Here’s a quick guide to help you plan your next stops in Iceland, no matter how far you’d like to explore.

Heidi at a sauna in Iceland with mist and the northern lights in the sky.  The second photo is Heidi standing among large chunks of ice on a beach
Viewing the northern lights from a sauna & Diamond beach

Getting Around: Renting a Vehicle vs. Tours from Reykjavik

If you’re planning to stay in the Reykjavik area, joining local tours that transport you to and from Silfra and other nearby sites is a convenient option.

If you’re eager to explore beyond Reykjavik and dive into Iceland’s stunning landscapes along the Ring Road, renting a vehicle is essential. Be sure to pay attention to the need for certain tires (all-wheel drive) and road closures in the winter.

THRIFTY TRAVEL HACK: Renting a car is a cost-effective way to explore Iceland, especially when splitting costs with other travelers. Staying in Reykjavik? Use the efficient public bus system.

Adventuring Near Reykjavik

If you’re planning to stay close to Reykjavik, you’ll find plenty to see and do without venturing far from the capital.

After your snorkeling adventure at Silfra, explore Thingvellir National Park’s historic landscapes, then head to Iceland’s Golden Circle route, which features iconic sights like Gullfoss waterfall, Geysir geothermal area, and more of Thingvellir’s breathtaking scenery.

Heidi standing in front of a large waterfall cascading down in front of her
The famous Seljalandsfoss waterfall near Reykjavik

Reykjavik itself offers a lively mix of culture, art, and dining, as well as attractions like the Sun Voyager sculpture and Hallgrímskirkja Church. You’ll also be close enough for a relaxing day at the Blue Lagoon, the world-famous geothermal spa, which is perfect for winding down after your adventures in Iceland’s incredible natural landscapes.

Venturing Around Iceland’s Ring Road

For a deeper dive into Iceland’s natural beauty, set your sights on the Ring Road. This famous route circles the island, leading to breathtaking sights like black sand beaches, glacier lagoons, and lava fields.

Heidi giving a peace sign to the camera on the black sand beach with the sunset in the background
Sunset at the famous Black Sand beach near Vik

Highlights along the way include the stunning Skógafoss and Seljalandsfoss waterfalls, the ethereal Jökulsárlón glacier lagoon, and the rugged East Fjords. These locations provide a variety of unique landscapes and photographic opportunities.

Honestly, at one point we just pulled the car over to explore the stunning cliffs!!

THRIFTY TRAVEL HACK: Iceland offers numerous free natural wonders, including Seljalandsfoss, Skógafoss, and Reynisfjara Black Sand Beach. These popular spots are perfect for exploring without any cost.

Be prepared for a road trip adventure—each destination along the Ring Road is a chance to explore the dramatic and diverse geography that makes Iceland so captivating.

Crater with a lake and snow all around with Heidi standing and looking at it
Hike up to the Viti Crater Lake – As we drove around Ring Road, all of a sudden it started snowing

Final Thoughts

Here’s the Rundown: Is it worth it? YES!!

Snorkeling in Silfra is a once-in-a-lifetime experience, swimming in some of the clearest waters on the planet.

Though technically not between the plates, you’re in the rift zone and most certainly swimming in a crack in the Earth.

The dry suit keeps you warm and dry as you float through the fissure.

Visibility underwater is incredible, and the unique geological formations make this a must-do experience for adventure lovers.

Be creative and talk to your guide about an epic, underwater photo pose!

Iceland’s unparalleled and extraordinary landscapes will leave you begging to come back during the opposite season.

Heidi snorkeling in the Silfra fissure giving a thumbs up to the camera

Ready to explore more ways to stay fit and healthy on your travels or plan epic adventures across the globe? Here are some ideas…

✴️Guatemala’s Active Volcano Hike: A Complete Guide for the Overnight Trek of Acatenango 2025
✴️Conquer the Challenge: Thrilling Via Ferrata Expedition at Mt. Norquay in Banff National Park
✴️Travel Fitness: 11 Best Ways to Stay in Shape on Vacation


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