Snorkeling and Caving Tour

Based on 8 traveller reviews

Go snorkeling between the continents of Europe and America and lava caving in Gjabakkahellir lava tube, both belonging to Thingvellir National Park.Thingvellir is situated on the Mid-Atlantic Ridge and is a UNESCO World Heritage Site.The national parliament of Iceland, Althingi, was founded there more than a thousand years ago. With its crystal-clear waters, amazing underwater scenery and the fact that you'll be swimming between continents; it can be truly be said of Silfra in Thingvellir that it offers one of the world's greatest snorkeling sites.You will also see incredible lava formations and amazing sights in the 9000 year old Gjabakkahellir lava cave in the summer and Leiðarend cave in the winter.

Join this tour for a for a caving and snorkeling adventure to some of Iceland's most fascinating attractions. Check availability by choosing a date.

Quick facts

Tour information:
  • Available: All year
  • Duration: 8 hours
  • Activities: Snorkeling, Caving
  • Difficulty: Easy
  • Minimum age: 16 years old
  • Languages: English
  • Highlights: South Iceland, Þingvellir, Silfra, Gjábakkahellir
Pickup information:
  • Starting time : 09:00

Please be at your pickup location in time for your departure. Should your pickup location be at a bus stop and you need assistance finding it, seek guidance in your Hotel's reception or contact your tour provider directly.
  • Pick-up from and to Reykjavík

  • Certified Padi® Diveguide / Divemaster and expert cave guide

  • All necessary specialized snorkeling gear including a specially made down suit to keep you warm in the glacier water

  • All necessary specialized caving gear including helmet and headlight

  • See what to bring

What to bring:
  • Warm and waterproof outdoor clothing

  • Gloves

  • Warm undergarment clothing (fleece/wool sweater and pants)

  • Warm socks

  • Change of clothing (just in case)

  • Lunch or snack

Good to know:

*Please note that all participants must be able to swim to be able to participate in the tour.

*Good hiking shoes are recommended and can be rented beforehand online. We also rent waterproof jackets and pants online.

Warning: Jeans and other cotton fabricated clothing are not accepted. When cotton gets wet it looses its insulation capabilities, gets cold and dries slowly.


Amazing experience! Snorkeling in Silfra was the high light of the day. Visiting the lava tube was also interesting. The tour company made sure everyone was comfortable on both excursions. Great value for the price!

Great adventure tour. We were a bit scared that it would be too hectic to do this in one day but it was perfect. Highly recommended and great value!

This was a great tour. Our guides were really friendly and knowledgeable. Caving was a lot of fun (and a little physically taxing so avoid if you have leg/foot injuries) and the experience of snorkeling in Silfra was amazing and something that is not to be missed if you have the opportunity.

What a fantastic day, amazing view and visibility in Silfra. As a first time snorkeller it took a little bit of time to get used to the dry suit and equipment but the time spent in the water made up for it. The caving part was informative, got to see all those things that you learn about in school, only this is more interesting with amazing colours and formations. Our guide was friendly and patient with our silly group, and knew the answers to all the questions we asked, regardless of topic.

Caving and snorkeling was an amazing experience. Our tour guide Teitur was the best guide ever ! He made the experience even more enjoyable. We went snorkeling first to experience the morning colours of Silfra. The dry suit was extremely uncomfortable for me but Jack, the guide for snorkeling, put me at ease with my many concerns ! He was so helpful & friendly. The colours of Silfra was beautiful. After, we went caving with Teitur which was just epic - an amazing experience & I was buzzing after we emerged from the cave. I would recommend taking durable, extra clothes & an underwater camera

Putting on the suit in the cold, was the worst, but the underwater view was well worth it, even when a bit of water got into my suit, the proffesionals were there to guide me and asure me i would be fine. The hot chocolate helped too! Wal was our tour guide, and he was awesome! Thanks to the "Guide To Iceland" Crew for one of the best experiences in my life!

The water was very cold but the scenery was incredible. I very much enjoyed seeing the two continents meet. The lava tube was very interesting too. I can recommend this tour.

Awesome excursion! About 30-40 minutes "actual" time in the water. Visibility is amazing! The guides (Wal, Juan, and Hermes) are great! The scenery around the lake is pretty cool. The worst part was putting on the suit outdoors as it was very windy and cold. The best part was jumping in the water and getting to experience snorkeling between the two continents. No need to clear your snorkel as the water is so clean you can just drink any water that gets in. The only body part that really gets cold would be your lips. The less you move your hands, the warmer they stay. Takes about an hour to get there from Reykjavik. The caving tour is cool. However, you go to Leidarendi cave and not Gjábakkahellir...At least in the winter time. The good thing is that Leidarendi is only 20 minutes from Reykjavik.

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Continue to reserve a spot on this trip. You can contact us any time to change your booking. Choose a date to find availability and see prices

Guide to Iceland does not add any fees, and as such, can not be liable for any accidents, losses, injuries, damages, delays, expenses due to any action or inaction on the part of the operator, guide or his/her services. As the terms and conditions of each tour operator may vary, please read the terms and conditions of each operator you purchase a tour from.

Arctic Adventures terms and conditions

If you are booking a trip with us please read on... 
Guests/Clients are advised that all outdoor activities are undertaken entirely at their own risk and they must behave in a fit and proper manner at all times in accordance with Arctic Adventures or their partners guidelines and must take proper responsibility for their own safety. All adventure tours and activities carry an inherent risk and Arctic Adventures does not assume any responsibility for accidents that are caused by its customers or can be traced to their own actions. With the purchase of your trip you agree to these conditions, understand its implications and accept responsibility for your participation in your tour. Depending on your chosen trip you may be requested by Arctic Adventures or its partners to sign an additional liability release on location prior to certain excursions. 

Cancellation policy:
You can cancel your day trip with out further costs with one weeks notice. You can cancel your multi day adventure or trek with out further costs with two weeks notice. Depending on your trip you may be able to get partly refunded for your trip down to 48 hours before your trip. But less then 48 hours before your trip no refunds are made. If you are booking a group then the final number of participants given 48 hours before the trip is undertaken is the number of participants you will have to pay for and hence no refunds are made for cancellations made less then 48 hours before a trip. 

Guide to Iceland cancellation policy:

Guide to Iceland charges a flat fee of 5000 ISK of each customer for online cancellations. 

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