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Snorkeling in Silfra & Lava Tube Caving

      • Duration

        8 hours

      • Depending on time of year and weather conditions.

      • Certificate required


      • Medical form required


      • Silfra snorkeling medical form is required to be signed before this tour. Click here to fill it in

  • 24.990 ISK
    Book now

Snorkeling in the Silfra fissure, a fresh water spring located in a crack between the continents of North America and Europe and explore the underground treasure of a lava tube cave.


Minimum age 12, guardian´s approval needed for minors under 18. This is an in water activity and you need to be very comfortable in the water and be able to swim. You also must not be pregnant to participate in this tour 

Medical Form:
You will need to complete an online medical for this tour, this will be sent to you when making your booking but you can view the for anytime to assess your suitability before making the booking. It can be viewed using this link SILFRA SNORKELLING MEDICAL RELEASE

Please note that if you answer “YES” to any question in section 1 you will not be able to participate. If you answer “YES” in section 2 we need your doctor to fill out our PHYSICIAN APPROVAL FORM. It needs to be filled out in English. All participants over 60 years old need a written physician´s approval.

There is a current in Silfra and you must be comfortable swimming against the current when needed

This is Glacial water and is extremely cold, this tour is only recommended for those in good physical condition with no pre existing medical conditions

The tour includes

  • Snorkeling in SIlfra fissure
  • Guided caving tour
  • Certified PADI Dive guide / Divemaster
  • An expert caving guide
  • All necessary snorkeling gear
  • All necessary caving gear
  • Free hotel pick-up and return
  • Small group guarantee
  • Thingvellir Silfra Entrance fee (1000 ISK)


After we have picked you up from your accommodation in Reykjavík we head for the cave where we will start our adventure. We have two lava tube caves that we can choose between depending on the season and conditions; Leiðarendi and Gjábakkahellir. Both caves are classic lava tubes that display all the typical lava tube features; splash and shark tooth stalactites, drip stalagmites and lava falls.

After the caving part, we make our way to Thingvellir national park, the home of Silfra fissure. Before we dive into the blue, we gear up and get a safety briefing from the snorkeling guides. Once in the water, the slow current takes you gently through the fissure while you take in the otherworldly beauty displayed in the crystal clear water. You will spend about 40 minutes in the water and the dry suit, as well as the teddy bear suit, will keep you warm and dry in the approximately 3°C cold water.
After a full day of excitement, we drive back to Reykjavík where we expect to be around 5 pm.

Snorkeling in Silfra Fissure
As well travelled adventurers, we had an amazing, unique experience snorkeling in Silfra. The guides were very informative and helpful with our wetsuits. We felt completely safe, despite the freezing water. The water was crystal clear with perfect visibility all the way to the bottom. Definitely worth taking the GoPro. An experience of a lifetime.

Cate M visited August 2016