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Arctic Adventures Silfra Fissure

4.6
(
1118
)
・Tourist Attraction ・
Thingvellir National Park, 801, Iceland

Silfra Fissure is a unique geological feature located in Thingvellir National Park in Iceland. It is a rift between the North American and Eurasian tectonic plates, meaning these two massive sections of the Earth's crust are slowly drifting apart. This creates a stunning underwater landscape known for its crystal-clear waters, with visibility reaching over 100 meters. The water in Silfra comes from a nearby glacier called Langjökull. As it melts, the water travels through porous lava rock, which filters it and results in exceptional clarity and purity. The water temperature remains cold year-round, typically between 2°C and 4°C. Silfra is popular for snorkeling and diving because it offers an unparalleled experience of swimming between two continents. Divers and snorkelers can explore different sections of the fissure: Silfra Hall, Silfra Cathedral, and Silfra Lagoon. Each area provides breathtaking views of intricate rock formations and vibrant underwater landscapes. While the water is cold, the use of dry suits allows visitors to stay warm while experiencing this natural wonder. Silfra Fissure offers an extraordinary opportunity to witness geological processes up close in one of the world's most beautiful settings.

Hour
Monday: 8:00 AM – 7:00 PM
Tuesday: 8:00 AM – 7:00 PM
Wednesday: 8:00 AM – 7:00 PM
Thursday: 8:00 AM – 7:00 PM
Friday: 8:00 AM – 7:00 PM
Saturday: 8:00 AM – 7:00 PM
Sunday: 8:00 AM – 7:00 PM

The Area

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Arctic Adventures Silfra Fissure

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What other travelers are saying about

Arctic Adventures Silfra Fissure

This was our favorite experience in all of our two weeks of Iceland! The guides made us feel very safe and helped us get all of our gear on quickly. I’m someone who is a bit claustrophobic, so the tight suit/headpiece made me a little nervous, but I’m telling you it is worth it to experience this! Plus, they start you in a shallow, still water area where you can bail out if you aren’t comfortable. The only part of you that touches the freezing water is around your face and through the gloves they give you. Everything else was perfectly warm and stayed dry. The experience is just so unique and you can’t get it anywhere else so take advantage of this opportunity!

Brandi Hefty
September 22, 2025
New York, NY

It’s really not as cold as I thought it would be. I’ve never been to a place with better water quality than this. Tour guide James is very easy going, we didn’t really know how to swim and still comfortably finished the tour.

withacup
August 25, 2025
New York, NY

Sinead was an awesome guide. Definitely recommend this tour it was amazing time. The day was perfect and wet suit really kept me from being cold. I was comfortable the whole time!

L Lemon
June 28, 2025
New York, NY

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Arctic Adventures Silfra Fissure

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Frequently asked questions

What is Silfra Fissure?

Silfra Fissure is a unique geological feature located in Thingvellir National Park, Iceland, where the North American and Eurasian tectonic plates meet. It is renowned for its crystal-clear waters and is one of the top diving sites in the world.

Why is the water in Silfra Fissure so clear?

The water in Silfra Fissure is extremely clear due to being filtered through porous underground lava rock from Langjökull glacier. This process takes decades, resulting in water with outstanding visibility of up to 100 meters.

Can you snorkel or dive at Silfra Fissure?

Yes, both snorkeling and diving are popular activities at Silfra Fissure. Snorkelers can float between two continents, while divers get a closer view of the fissure's underwater topography. It's important to book tours with certified operators as the conditions can be challenging.

What is the temperature of the water in Silfra Fissure?

The water temperature in Silfra Fissure remains between 2°C and 4°C (35°F - 39°F) year-round. Participants are provided with dry suits to protect against the cold during diving and snorkeling activities.

What makes diving at Silfra Fissure unique compared to other diving sites?

Diving at Silfra Fissure offers a one-of-a-kind experience due to its location between two tectonic plates and its stunning underwater visibility. Divers can touch both continental plates simultaneously, making it a truly unique geological experience.