Snorkelling & Lava Caving Adventure From Reykjavik

Based on 8 traveller reviews

Go snorkelling between the continents of Europe and America and lava caving in a typical Icelandic lava tube on this full day, small group, adventure tour, available directly from Reykjavik. The tour starts with a pick-up from authorised pickup points in Reykjavik at 9 am. Accompanied by your guide, visit Thingvellir National Park, a UNESCO World Heritage Site, situated on the Mid-Atlantic Ridge, and drink in the geological wonders and magnificent history of this phenomenal place. Thingvellir National Park holds the magical fissure of Silfra, where you will be snorkelling. The heavenly blue colours and incredible visibility of Silfra are simply a mesmerising sight. Float around the current of the fissure and admire its amazing rock formations before setting foot on dry land again and continuing towards the hidden underworld of a typical Icelandic lava cave that was formed in a volcanic eruption once upon a time. Iceland is worldly known for its volcanic activity so make sure to listen carefully as your guide explains all about the country‘s volcanic history and how these powerful forces of nature can create a hidden world of lava tubes underneath the surface.

This tour offers you the chance to step out of your comfort zone, joining 2 adventures on the very same tour and explore the jagged rock formations of a typical lava tube cave after a refreshing snorkelling adventure in Silfra fissure.

Your adventure day tour concludes with a drop off back to Reykjavik at approximately 5 pm.

This tour is available all year round and is suitable for those in a good physical condition.

Please note that the order of the itinerary can change whereas your day would then start with a visit to the lava cave.

All participants need to be comfortable in water and be able to swim to be able to participate in this adventure tour. It is important to note that all snorkelers must fill out a medical form before going on the tour.

Quick facts

Tour information:
  • Available: All year
  • Duration: 8 hours
  • Activities: Snorkelling, Caving
  • Difficulty: Moderate
  • Minimum age: 12 years old
  • Languages: English
  • Highlights: South Iceland , Þingvellir , Silfra , Gjábakkahellir
Pickup information:
  • Starting time : 09:00

  • Small group guarantee

  • Pick up from Reykjavik with return transfer

  • An expert caving guide

  • Experienced snorkleing guide (Dive Master)

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

  • Specialized caving gear, including a helmet and a headlight

  • Hiking shoes (can be rented as an extra)

  • Food & drinks

What to bring:
  • Warm and waterproof outdoor clothing, waterproof pants and jacket, packed lunch, head-wear, gloves, good hiking shoes, towel and a change of clothing

Good to know:

Prior to diving or snorkelling, you will be provided with the document; "Diving and Snorkelling in Silfra Fissure: A Handbook to Prepare You for your Adventure".

This handbook will guide you through the entire process of snorkelling and diving at Silfra, from how to put on a drysuit to information about the fissure itself. The handbook will also contain a questionnaire asking whether you have suffered, or currently suffer, from issues relating to the tour, such as lung disease or allergies to the cold.

If you answer yes to any of these preconditions, you may need medical clearance from a doctor before joining, or you may be refused outright. If you have any queries regarding your eligibility for these tours, please don't hesitate to contact the tour operator directly. You will also sign a liability waiver within the handbook itself. The following regulations must be met:

be at least 150cm tall

be at least 45kg

be at least 16 years of age

be comfortable in water and be able to swim

be physically fit

be ready to wear a sometimes tight & constricting dry suit

not be pregnant


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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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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