This snorkeling tour takes you to one of Iceland’s most geologically remarkable spots—the Silfra Fissure in Thingvellir National Park. You’ll float in glacial water between the North American and Eurasian tectonic plates, peering down into an 82-foot ravine with visibility so clear you can see the rocky bottom. The whole experience runs about three hours and costs $141 per person, which includes all gear, a certified guide, underwater photos, and warming hot chocolate afterward.
What makes this stand out is the sheer uniqueness of the setting. This isn’t a typical snorkel-with-fish experience—you’re swimming in a geologically active zone where two continental plates are literally pulling apart. The water clarity is exceptional, and you’ll float along currents that move you through the fissure naturally. The guides know their stuff, many of them genuinely passionate about the area and eager to share what makes this place special.
The main consideration is the cold water. We’re talking one-degree Celsius glacial melt, which means your face and hands will feel the chill despite the dry suit. You’ll stay dry underneath, but exposed skin gets proper Arctic treatment. This isn’t a dealbreaker for most people—the dry suits work well—but it’s worth knowing upfront. Some visitors report it’s more manageable than expected, while others find it genuinely challenging.
I went in August & I totally forgot to write a review. It was so cool, and seeing the tectonic plates looked fake! It does get cold on your face & hands, so if you hate being cold i wouldn’t recommend. But for all the adventurous people out there it is so cool & our guide was awesome.
MAKE SURE YOU EAT BEFORE YOU GO!!!! My 3 girls (13,14,17) all got sick after exiting the frigid water. They passed out, blood sugar dropped and they were out of it for a good hour before coming around. We hadn’t eaten enough before although I don’t know exactly how much food would have helped but we were told it would have helped somewhat.
You get long enough time to float in the water. Your body doesn’t get wet but your face and hands do. The water was super clear and we all drank some.
- What You Actually Get for Your Money
- Getting There and What to Expect
- The Actual Snorkeling: What You’ll See and Feel
- Timing and Logistics That Matter
- The Good Guides Make All the Difference
- Managing the Cold Reality
- Physical Requirements and Safety Considerations
- Booking Logistics and Cancellation Policy
- Who Should Book This Experience
- Value Assessment
- Making Your Final Decision
- FAQ
- How cold is the water really, and will the dry suit keep me warm enough?
- What should I bring and what's provided?
- How do I get to Thingvellir National Park from Reykjavik?
- What happens if I arrive late or the weather is bad?
- Will I actually see fish and marine life while snorkeling?
- Are the underwater photos included in the price, and will I get individual shots?
- What medical conditions would prevent me from participating?
- How many people will be in my group, and will it feel crowded?
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What You Actually Get for Your Money

The $141 price point represents decent value when you factor in what’s included. Most snorkel tours charge extra for gear rental, but here everything comes bundled: dry suit, thermal undersuit, hood, boots, fins, snorkel, and goggles. The underwater photos and hot chocolate are genuine perks that other operators sometimes charge separately for. You’re also getting a PADI-certified guide leading small groups of no more than six people, which means actual personalized attention rather than being herded with 20 strangers.
The real value isn’t just in what you’re paying—it’s in what you’re experiencing. This is a once-in-a-lifetime geological phenomenon that you simply can’t do anywhere else. You’re literally swimming between two tectonic plates. That’s not hyperbole. The clarity of the water means you’re seeing something genuinely stunning, not murky water where you have to trust what the guide tells you.
Getting There and What to Expect
The tour meets at Arctic Adventures’ office in Thingvellir National Park, which means you need to arrange your own transportation from Reykjavik. This adds logistics to your day, but it also keeps costs down. Budget an hour-plus drive from the city center, depending on traffic and where you’re staying. You’ll need to arrive with enough time to get geared up and receive your safety briefing.
When you arrive, the team will fit you with your dry suit and thermal undersuit. Yes, this takes time and feels cumbersome getting in and out, but the gear does its job—you stay warm and dry. The safety briefing from your certified guide covers what you need to know about currents, group movement, and what to do if you feel uncomfortable. They take this seriously, and they should.
We were so exited for this experience and loved that we snorkeled this Continental Divide. Carol was great, just 5 people in our group. Would highly recommend!
Really enjoyed the actual experience and our guide was great. The only downside is they take too many bookings at the same time, but only groups of 6 can enter the water at any time so there is a lot of waiting around. I think the whole thing would be much better if they staggered bookings at 15/30min intervals and it would probably save you an hour of time. Overall though the snorkelling was extremely enjoyable and I would recommend it. Amazing colours and clear waters. A good level of swimming is recommended as there are some currents.
The cold water is challenging for your face and hands- but it was a fun adventure. Each group was limited to six people, but even still, it was sometimes difficult to understand guides directives.
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The Actual Snorkeling: What You’ll See and Feel

Once you’re in the water, the experience is genuinely surreal. The fissure walls are stark and rocky, with minimal marine life to distract you. You’re not here to see tropical fish or colorful coral. You’re here to float in impossibly clear water between two continental plates. The current moves you along naturally, which is actually helpful—you can relax and let the water carry you while you focus on the views.
Your face and hands will feel cold, but your body stays protected by the dry suit. Most visitors report the experience is more manageable than they feared, especially if they’ve eaten well beforehand. Several guides—Matt, Alex, Dimitri, Christian, and Nico among them—have earned praise for keeping groups calm and taking excellent photos. The small group size of maximum six people means you’re not jockeying for position or feeling lost in a crowd.
The water clarity lets you see straight down into the depths. That visual connection to the geological reality—seeing the actual fissure beneath you—is what makes this different from any other snorkel experience. It’s not about what’s living in the water. It’s about where you are.
Timing and Logistics That Matter

The three-hour duration includes getting geared up, the safety briefing, actual snorkeling time, and getting out of your gear afterward. Plan for the full three hours plus travel time. You’ll want warm base layers underneath your dry suit—fleece or wool works best, not cotton. Bring warm socks, a small towel, and a change of clothes because yes, you might get damp during the gear transition. The tour operates year-round, though weather can occasionally cause cancellations.
Snorkeling in Iceland's Silfra Fissure is a highly recommended, unique "once in a lifetime" experience to swim between the North American and Eurasian tectonic plates. The water is incredibly clear, and one degree C – glacial water, which was manageable with the provided drysuits. We enjoyed the breathtaking underwater landscape rather than marine life. Tour was made accompanied by knowledgeable guides, quality drysuits, and a post-snorkel hot drink to warm up.
This was an awesome experience. The views alone were breathtaking. The water was a bit chilly, but so worth it.
Great tour! Nico was awesome! It was very fun and he took good pictures and was very knowledgeable on the area.
One practical tip from travelers: eat a solid meal before you go. Several visitors mentioned that their teenagers experienced low blood sugar and dizziness after exiting the cold water, and eating beforehand would have helped. Your body burns calories working to stay warm, even in a dry suit. This isn’t a small detail—it’s the difference between feeling great afterward and feeling lightheaded.
The Good Guides Make All the Difference

Reading through feedback, certain guides appear multiple times with genuine praise. Matt, Alex, Christian, Dimitri, and Nico consistently show up in positive reviews as patient, knowledgeable, and good with photography. These aren’t just names to note—they’re indicators that the operation maintains quality staff. A good guide explains the geology, manages the group well, and makes the experience feel safe even when you’re nervous about the cold.
The guides also handle photo duties. The tour includes free underwater photos, which is a genuine perk. Some guides are more thorough with this than others, so don’t expect studio-quality individual portraits, but you should get decent shots of your group in the water. If photography is important to you, mention it when you arrive.
Managing the Cold Reality

The glacial water at one degree Celsius is the experience’s defining challenge. Your face and hands get exposure, and the shock is real. However, the dry suits provided are functional equipment, not gimmicks. Your core stays warm. The cold is intense but manageable for most swimmers.
Great unique experience! A must do if you have the time and are not afraid of swimming. Tour guide was very nice and patient. Highly recommend.
It was very unique. I didn’t think the water was that bad, but you really are only going to see rocks and algae. Our tour guide was Pedro and he was amazing!!
From landing we went right here. After taking an early flight the fresh water brought us back to life. Had a fantastic time. Francesca was incredible. The sights were amazing. If you are in Iceland you can’t not do this.
If you hate being cold, this probably isn’t your tour. But if you’re the type who enjoys a challenge and wants bragging rights for swimming in Arctic conditions, you’ll find it worth the discomfort. The experience lasts long enough to float and absorb the views without the cold becoming unbearable, though you’ll definitely appreciate that hot chocolate and cookies at the end.
Physical Requirements and Safety Considerations

You need to be a competent swimmer and understand English to participate safely. The minimum age is 12, with anyone under 18 needing a parent or guardian on the same tour. The tour operator requires that you review their snorkeling handbook before your tour—this covers medical conditions and safety protocols. Some health conditions disqualify you from participation, and pregnant people cannot participate due to the risk of water entering the suit.
Glasses don’t work under the goggles, so bring contact lenses if you need vision correction. The current in the fissure is real but manageable with proper technique. A moderate fitness level is all you need—this isn’t extreme diving, it’s floating in a dry suit.
Booking Logistics and Cancellation Policy

You can cancel up to 24 hours before your tour for a full refund, which is standard and fair. The tour requires decent weather, so poor conditions might result in a reschedule or refund. One important note from traveler feedback: arrive on time. The operation is strict about departure times, and being even 15-20 minutes late can result in being turned away. This seems harsh, but it’s how they manage multiple groups and safety protocols.
Incredible experience! One of the coolest things we've ever done. The fissure was beautiful and our guide, Jampy, was great. Highly recommend!
Great experience once we got into the water. The gear necessary was cumbersome but kept us warm and dry. Be prepared for enduring the gear. The guide was wonderful.
Be prepared for the cold water chill but well worth it for the experience. Beautiful clear water with mesmerising colours. If you’re fortunate enough to have a group of travelling companions even better, as you won’t be delayed by tardy tourists that don’t follow the meeting instructions.
Book directly with Arctic Adventures if possible rather than through third-party booking sites. Several travelers reported issues with Viator bookings where their names didn't appear on the day-of list despite payment, causing significant frustration. Booking directly eliminates this middleman problem.
Who Should Book This Experience

This tour suits adventurous travelers who want something genuinely unique and aren't afraid of cold water. It's perfect if you're interested in geology or want a story that goes beyond typical vacation activities. It works well for fit families with teenagers, solo travelers seeking memorable experiences, and anyone who wants to say they've swum between tectonic plates.
It's less ideal if you're looking for relaxing beach time, expecting to see abundant marine life, or if cold water genuinely bothers you. It's also not the right choice if you can't commit to being on time or if you need maximum flexibility with scheduling.
Value Assessment
At $141, you're paying a fair price for a specialized experience with full gear, professional guidance, and unique access. The inclusion of photos and hot chocolate adds genuine value. Compare this to other adventure activities in Iceland—a helicopter tour costs three times as much, glacier hiking runs similar prices—and the Silfra experience offers comparable value.
The main cost-saving tip is arranging your own transportation rather than booking a tour package that includes transfers. This saves you money but requires more planning. If you're renting a car, it's straightforward. If you're relying on public transport or shuttles, factor that into your decision.
Making Your Final Decision
Book this if you want something genuinely different from typical vacation activities and you're comfortable with cold water and early mornings. The experience itself is exceptional—the geological reality of swimming between continental plates is legitimately special. The guides are generally knowledgeable and capable. The water clarity is stunning.
Skip this if you're risk-averse about cold, need maximum schedule flexibility, or if you're traveling with very young children. Also reconsider if you have medical conditions—review the handbook requirements carefully before booking.
The 4.6-star rating from nearly 500 reviews reflects a genuinely well-run experience with occasional operational hiccups. Most negative reviews stem from customer service issues or unrealistic expectations about cold water, not from the actual snorkeling itself. The experience itself consistently impresses people.
Snorkel the Silfra Fissure-Meet on Location (Free Photos & Cocoa)
"I went in August & I totally forgot to write a review. It was so cool, and seeing the tectonic plates looked fake! It does get cold on your face & ..."
FAQ
How cold is the water really, and will the dry suit keep me warm enough?
The water is one degree Celsius, which is genuinely cold. However, the dry suit with thermal undersuit does keep your core warm and dry. Your face and hands will feel the cold, but your body stays protected. Most visitors find it manageable, especially if they eat well beforehand. If you're sensitive to cold, this is worth serious consideration, but don't assume it's unbearable—many people handle it better than they expect.
What should I bring and what's provided?
The tour provides your dry suit, thermal undersuit, hood, boots, fins, snorkel, and goggles. You need to bring warm base layers (fleece or wool, not cotton), warm socks, a small towel, and a change of clothes. You should also bring your own food and drinks—the tour includes hot chocolate at the end, but nothing during the experience. Don't rely on vending machines at the park.
How do I get to Thingvellir National Park from Reykjavik?
Transportation is your responsibility. It's roughly an hour drive from central Reykjavik depending on traffic. If you're renting a car, it's straightforward. If not, consider booking a ride with a shuttle service or arranging a ride beforehand. Budget extra time for the drive, especially in winter when roads can be slower.
What happens if I arrive late or the weather is bad?
The operation is strict about start times—arriving even 15-20 minutes late can result in being turned away. Poor weather might result in cancellation, in which case you can reschedule or get a full refund. Plan to arrive 15-20 minutes early to account for parking and finding the office.
Will I actually see fish and marine life while snorkeling?
No. The Silfra Fissure is a geologically dramatic environment with minimal marine life—you'll see rocks, algae, and the stark beauty of the fissure walls. This tour is about the geological experience of swimming between tectonic plates, not about observing tropical underwater scenery. If seeing fish and coral is your goal, this isn't the right tour.
Are the underwater photos included in the price, and will I get individual shots?
Yes, underwater photos are included at no extra cost. The guide takes photos of your group while snorkeling. Individual portrait-style shots depend on your group size and guide availability. Don't expect professional headshots, but you should get decent images of yourself in the water. If photography is very important, mention it when you arrive.
What medical conditions would prevent me from participating?
The tour operator requires reviewing their snorkeling handbook, which outlines specific medical disqualifications. Pregnant people cannot participate. Conditions affecting your ability to safely be in water or tolerate cold exposure may disqualify you. Review the handbook before booking if you have any health concerns. The operator takes this seriously and won't make exceptions.
How many people will be in my group, and will it feel crowded?
Maximum group size is six people, which is genuinely small. The tour operates multiple groups throughout the day, so you might see other groups at the office, but only your group of up to six enters the water at one time. This keeps the experience personal and manageable, though some travelers noted waiting around between group departures.

























