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The Silfra Fissure is more than a snorkelling site - it is a surreal passage between two continents! Slip into the clearest water on Earth and watch a hidden world unfold around you. You’re gliding through a cathedral of rocks and shimmering blues, surrounded by volcanic rock walls that drift apart 2cm every year. Few places on the planet let you feel so connected to the forces that shape the Earth. Our expert guides are trained to ensure your safety and confidence in the water, so you’re free to focus on the wonder around you. This is not a typical swim, it’s a once in a lifetime adventure into the heart of Iceland.
Not recommended for travelers with spinal injuries
Not recommended for travelers with poor cardiovascular health
Travelers should have at least a moderate level of physical fitness
IMPORTANT: Participants are responsible for reviewing our Snorkeling Handbook before the tour. The handbook contains important medical and safety information. If guests do not meet the requirements for safe participation, we are unable to accommodate them on the tour (https://adventures.is/media/240250/arctic-adventures-snorkeling-in-silfra-fissure-guide.pdf)
All participants must be able to swim independently, comfortable in the water, and able to understand English to be able to safely participate in the tour
Minimum age is 12 years old. Participants under 18 must be accompanied by a parent or adult guardian booked on the same tour.
Glasses cannot be worn under the goggles. Please bring contact lenses if required.
We provide a thermal undersuit and dry suit to wear over your clothing while snorkeling
PLEASE BRING: Warm base layers, preferably made from fleece or wool (not cotton), warm socks, a small towel and a change of clothes (just in case)
Medical issues outlined in our handbook require doctors approval to join the tour (e.g., asthma, diabetes). Some conditions mean guests cannot participate.
Pregnant people are unable to participate due to the risk of water entering the suit
It is crucial that guests review the handbook for medical information: https://adventures.is/media/240250/arctic-adventures-snorkeling-in-silfra-fissure-guide.pdf
Experience one of the world’s most unique snorkeling sites: the Silfra Fissure in Thingvellir National Park, a UNESCO World Heritage Site. Here, you’ll swim between the North American and Eurasian tectonic plates in crystal-clear glacial waters with up to 150 meters of visibility. Meet your PADI certified guide directly at Thingvellir, where they will give you a safety briefing and help you suit up to explore the surreal blue world beneath the surface. Silfra’s waters come from Langjökull Glacier, traveling through lava fields before reaching the fissure, creating an underwater landscape unlike anywhere else on Earth. The guide to guest ratio is 1:6 to ensure a more personalized experience. Underwater photos taken by your guide are included free of charge. After your snorkeling adventure, warm up with hot chocolate and cookies before heading off to explore more of Iceland at your own pace. Silfra is a convenient stop on the iconic Golden Circle route! This tour is meet-on-location at Thingvellir. If you require transport to and from Reykjavík book this option: https://www.viator.com/tours/Reykjavik/Snorkeling-in-Thingvellir-National-Park-from-Reykjavik/d905-5590AAITB
Add adventure into your day: A convenient first stop before your adventure beyond Reykjavík, or come later for a less crowded, more premium experience
Meet us in Thingvellir: Join one of these discounted timeslots and save!
Meet on Location: Silfra is often less busy later in the day. Book this option to avoid the crowds!
Small group size with a maximum of 6 guests per guide
Certified PADI Divemaster
Hot Chocolate + Cookies
All necessary snorkeling gear (snorkel, goggles, fins, drysuit, thermal undersuit, hood, boots)
Free Underwater Photos
Food & drinks
This tour meets in Thingvellir - Transfer from Reykjavík is not included
Towel, change of clothes, socks
For a full refund, cancel at least 24 hours before the scheduled departure time.
592 đánh giá
Tổng số đánh giá và xếp hạng từ Viator & TripAdvisor
vincentsK7121DZ,27 thg 6, 2026
- Đánh giá từ Tripadvisor
Nico was a very friendly and knowledgeable guide. He was patient and I never felt unsafe. Had a great time!
M2254DQjenniferb,27 thg 6, 2026
- Đánh giá từ Tripadvisor
Israel was sooooo great!!! The experience is otherworldly- beautiful and strange!!! The equipment was great (our bodies were warm). Israel was attentive and informative and grounding, the other staff were very helpful. We were very glad we did this!
98chelseyking,27 thg 6, 2026
- Đánh giá từ Tripadvisor
What an incredible experience!! Our guide, Flor, was amazing!
chiarabN5692AD,25 thg 6, 2026
- Đánh giá từ Tripadvisor
It was super fun to snorkel in Silfra, Markita was nice, she explained very well all the steps and took nice pictures of us. The suit can be a bit tight at the beginning, but once you get used to it and you don't think about it anymore it's fine! Don't expect fishes, but the blue water and cool rock formation make the experience quite unique.
jhL378JL,25 thg 6, 2026
- Đánh giá từ Tripadvisor
Everything about this experience was the coolest thing I've done. Looking through the cleanest water to see the beauty of Silfra Fissure. Also I wanted to say our Tour guide Israel from Spain was the nicest down to earth person I've met out here. Very professional and just a funny, good, humble guy.
311patrinad,24 thg 6, 2026
- Đánh giá từ Tripadvisor
Mija was a wonderful guide. Helped us get suited up and explained the process well. We had an epic time! Definitely an experience our family will never forget.

MarieElizabeth B,24 thg 6, 2026
- Đánh giá từ Viator
Very beautiful, very kind and friendly guide. Warm suits for all swimming except the hands. Very beautiful experience. Water really clear.
stephaniebX6215YI,24 thg 6, 2026
- Đánh giá từ Tripadvisor
This was my family's 2nd tour with Arctic Adventures. Not only were the 2 tours literally "chances of a lifetime," the tour company itself (customer service) is spot on!! Snorkeling Silfra was an exhilarating experience! Though our hands and lips were cold, our bodies stayed warm. Our guide Isra ensured utmost safety and comfort. Snorkeling in the crystal clear waters and embracing the fact that we were between 2 continents made the cold totally worth it. The tour is a great value, too...not too pricey for such a unique adventure! One more thing about the company itself....I had 2 or 3 issues to work though (my fault, not their's) and their customer service through the chat feature was exceptional! I was unable to call due to international calling issues, but through the chat, they were prompt, thorough, and helped until the issues were fully resolved to perfect satisfaction!

fe343,23 thg 6, 2026
- Đánh giá từ Tripadvisor
We had an incredible experience with Ezra (sorry for the spelling). He was very attentive, allowing us to experience the moment peacefully and enjoy it fully! Thank you to him for this timeless moment that we are not ready to forget!!!
978bradym,23 thg 6, 2026
- Đánh giá từ Tripadvisor
Israel was AWESOME!! Best guide I’ve had in any tour I’ve done. 100/100 great guy, very personable and great to talk with. Would come back for him alone
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