Located between Eurasian and N-American tectonic plates, in the heart of Þingvellir National park (a UNESCO World Heritage site) you will find one of the world’s best-kept underwater secrets.  Being an otherworldly scene Silfra fissure is frequently rated as one of the world’s top ten diving sites.

Before entering the clear water the dry suits are zipped tight and the goggles put on.  The visibility is only limited by the density of the water itself and the crystal-clear water in the deep fissure gives you a feeling of being weightless as you float along with the lazy current.

Silfra snorkeling is a relaxing but exotic trip in an environment most will only encounter in their dreams. A pure underwater paradise.

Rated: Moderate
Duration: approx. 3 hours if you meet us on location / approx. 5,5 hours with pick up

Requirements (min-max): 45-120 kg, 150+ cm. Participants have to be comfortable in the water and able to swim again slow current. Pregnant woman are not able to participate.
Included: Certified PADi® Divemaster, all snorkeling equipment needed and Silfra admission fee.
Bring/wear: Warm undergarments (wool or fleece, no cotton!), warm woolen/fleece socks and a change of clothes (just in case). You cannot wear glasses underneath the goggles. If needed, wear eye lenses or bring your own goggles with prescription.

Age limit: 12 years old
Meet on location: 15 minutes before departure at Þingvellir national park – parking P5, by Silfra fissure.

This tour does not include pick up.
Pick up at ION Adventure hotel or Reykjavik: Available upon request at additional cost. For more information please contact us at


We recommend you to familiarize yourself with requirements here

Please note:
– The glacial water is about 2-4°C. If you have any pre existing medical conditions we recommend you get a doctor’s advise on participating in this activity.
– Þingvellir national park charges a small fee for parking.
– Chauffeur service/transport from ION Adventure hotel to Þingvellir for the tour is available for an additional fee.