Silfra

Dive between tectonic plates in crystal clear glacial water.

Shore Access
10m Avg Depth
18m Max Depth

About this dive site

This dive site is a truly unique experience located within Thingvellir National Park, situated between the North American and Eurasian tectonic plates. Formed by earthquakes in 1789, this fissure represents a dramatic rift where these continents are continuously moving apart – approximately 2 centimeters each year. It’s one of the few places globally where you can immerse yourself directly within this geological boundary. The diving and snorkeling area is accessed through an underground spring fed by glacial meltwater from Langjökull glacier, filtered for 30-100 years before reaching Silfra. This results in exceptionally pure water with remarkable clarity, allowing visibility exceeding 100 meters. The water temperature remains consistently cold, ranging between 2°C and 4°C year-round due to the continuous influx of fresh glacial meltwater. Silfra's unique geological setting means it’s a dynamic site; ongoing shifts cause changes in its topography – including widening fissures, occasional rockfalls, and the creation of new underwater tunnels and caverns. Due to this constant evolution, diving here offers an ever-changing environment. The water is so pure that you can even taste it! It's considered one of the clearest bodies of water on Earth.

Diving Freediving Snorkeling

Site Ratings

Big Marine Life Poor
Macro Marine Life Poor
Landscape Quality Excellent
Water Visibility Excellent Viz
Famousness World Famous

Plan Your Visit

geological formationwall divecavernswim-throughwide anglecold waterfreshwater

Things to Note

Difficulty:

Intermediate

Requires dry suit certification due to extreme cold; otherwise, navigation is straightforward.

Hazards:
extreme coldrockfalloverhead environment
Current Strength:

Mild

Diving Conditions

Water Temperature Now: NaN°C

Wind

Tide

Swell

Swell Height (m)
Swell Period (s)

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