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  • Electronic Voucher Accepted
  • Languages Offered: English
Make your way to a designated pickup point in central Reykjavik, where you climb aboard a climate-controlled minibus for the roughly hour-long journey to Thingvellir National Park. Listen to a quick safety briefing and introduction to the park, then get fitted for spelunking and snorkeling gear.

Follow your guide to underground lava fields through Gjabakkahellir or Leioarendi cave. Climb through a lava tube and take a tour of the cave. Marvel at layers of rock and lava deposits in one of the most active volcanic areas in the world.

After a lunch break (at your own expense), continue to the Silfra fissure, which lies between the tectonic plates that separate North America and Eurasia. Put on snorkeling gear and a wetsuit to explore the underground pool. Your guide takes you to the pool’s most scenic areas.

Finish the daylong adventure with a drop-off at the departure point.
Locations visited
Leidarendi Cave
Thingvellir National Park
Arctic Adventures
Iceland is a global crossroads for outdoor adventure, but it can be hard to find experiences beyond mere sightseeing. On this adventure tour, visit Thingvellir National Park—a UNESCO World Heritage site—for a day of spelunking and snorkeling. Explore a lava tube and cave in one of the most volcanically active regions in Iceland, and then snorkel in the Silfra fissure, swimming between the American and Eurasian tectonic plates.
  • Explore with a guide and a certified dive-master; you’ll be in good hands
  • Get good value by combining snorkeling and spelunking in one day
  • Small-group guarantee, ensuring a more personalized experience
  • All equipment is provided, and all experience levels are welcome
  • Stress-free round-trip transportation from downtown Reykjavik
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1 - 5 of 27 reviews
Reviewed 2 days ago via mobile
Out of this world experience!

Totally worth the money. Both parts of the tour were incredible. I did not know what to expect with the lava tube. I booked it because it seemed like a good use of the day, but I did no research at all into what that...More

Thank John A
Reviewed 2 weeks ago
A Great Geography Lesson

What a great day! The lava caving trip in the morning was extremely informative, easy to navigate the lava cave and our guide was hilarious. She was extremely knowledgeable about how the cave was formed etc. After lunch, we arrived at Silfra to go snorkelling....More

Thank Steph L
Reviewed 2 weeks ago
Great Tour and Great Company

First let me say that this is one of the most professional tour companies that I have worked with. Their customer service is available to answer any and all questions with a polite tone. They picked us up at the predetermined pick-up right on time...More

1  Thank chrisZ8856UH
Reviewed 3 weeks ago
Great Customer Service and Guides

Prepare yourself for a long review! To summarize: This company has exceptional customer service; the guides are friendly, funny, knowledgeable, and experienced; the experiences you get can't be found elsewhere and are worth every penny; the tours are very safe and none are uncomfortable. I...More

1  Thank gulee350
Reviewed 13 July 2018 via mobile
Very Cool

Our guides Martin and Janus were both friendly and knowledgeable. In the morning we were with both as we explored the lava cave. We broke for lunch at a bakery near the bus station (which was good). In the afternoon, Martin took us to the...More

Thank ellenblaydes
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Questions & Answers
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1 August 2018|
Response from chrisZ8856UH | Reviewed this property |
The flybus is your best option.
3 July 2018|
Response from | Reviewed this property |
No, we did not travel the golden circle. We traveled to the cave, came back to Reykjavik for lunch, then traveled to the snorkeling site.
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