Silfra Fissure Guided Snorkeling in Thingvellir with Free Photos
Overview
Available languages
3 hours
Mobile ticket
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.
Additional Info
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
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
What To Expect
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
Options
Standard Tours
Add adventure into your day: Silfra is a convenient first stop of the day for those embarking on an adventure beyond Reykjavík, or returning later on.
Discounted Times
Meet us in Thingvellir: Join one of these discounted timeslots and save!
Late Afternoon Discounted Tour
Meet on Location: Silfra is often less busy later in the day. Book this option to avoid the crowds!
What‘s Included
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
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
Reviews
571 reviews
Total reviews and rating from Viator & Tripadvisor
10/10 Must Do!
rachelkR3655IY,Jun 11, 2026
- Review from Tripadvisor
5.00Ilia was absolutely amazing and made us feel so comfortable! She was very friendly and took the time to take many pictures of us throughout the swim, which we greatly appreciated. We would highly recommend anyone to do this tour!
Snorkeling between plates
joelrE8363AS,Jun 9, 2026
- Review from Tripadvisor
5.00Had great experience with the tour and our guide Flor. She was great, very friendly and helpful. I would recommend her to my friends
Nico was great!
meghanbJ4769IS,Jun 9, 2026
- Review from Tripadvisor
5.00Nico was my guide for the Silfra Snorkeling experience and he was absolutely wonderful! He made sure everyone in my group felt comfortable throughout the experience and was very friendly. I was traveling solo and was a little nervous about the experience, but he made sure everyone had a great time and was well-informed.
Super snorkeling in the Silfra fissure
A7980SWfrankr,Jun 8, 2026
- Review from Tripadvisor
5.00Super snorkeling experience in the Silfra fissure on May 31, 2026, professionally guided by Jenny. Highly recommended! Frank & Ramona
Amazing experience
Climber19915820058,Jun 7, 2026
- Review from Tripadvisor
5.00Amazing experience! 10/10 recommend for anyone visiting Iceland and looking for a unique experience.
Unforgettable experience in a beautiful place!
KilbyFamily,Jun 7, 2026
- Review from Tripadvisor
5.00It was quite a dull weather day with some rain, but still we saw amazing colours and clarity in the water - quite astonishing! The experience of using a dry suit was new for us, but we were helped in every step of the kitting-up process. Hernan was enthusiastic, reassuring and explained everything very clearly, and we felt safe with him. He also explained the surrounding area and what we could see - where the Eurasian and N. American tectonic plates were - much more clearly than we had read anywhere else. We even had hot chocolate and biscuits afterwards to replenish the energy, but didn't really feel cold at any time.
Snorkelling in fissure
Climber59015180502,Jun 7, 2026
- Review from Tripadvisor
5.00Snorkelling in clear waters with 100m forward visibility is an out of the world experience. Our guide Herman was fantastic and really put everyone at ease!
Icelandic Snorkeling
DayTrip40210597469,Jun 7, 2026
- Review from Tripadvisor
5.00One of the best experiences I ever had and I’m not even a big fan of water!
Worth it
johnsonc633,Jun 6, 2026
- Review from Tripadvisor
5.00We had an excellent time with beautiful underwater views, very well worth it. We had an extremely friendly and helpful guide named Nico, who was very easygoing and knowledgeable.
Highly recommend while in Iceland
978aquam,Jun 6, 2026
- Review from Tripadvisor
5.00Short walk from lot p5. The gear was great. Straight forward instructions. Awesome views. Had an amazing time. Thanks so much Nico!
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