--- title: Lava Tunnel Caving & Snorkeling in Silfra with Transfer | Free Photos lang: en type: tour city: Reykjavik country: Iceland price: 295 currency: EUR price_unit: per_person availability: bookable rating: 4.97 reviews: 34 duration_minutes: 360 duration_max_minutes: 420 languages: [en] free_cancellation: "true" rank_in_category: 14 of 22 (Silfra Snorkeling & Diving) schedule_checked: 2026-10-22 data_updated: 2026-10-22 canonical: https://guidekin.com/iceland/reykjavik/tours/lava-tunnel-caving-snorkeling-in-silfra-with-transfer-free-photos/ --- # Lava Tunnel Caving & Snorkeling in Silfra with Transfer | Free Photos In our comparison: #14 of 22 in Silfra Snorkeling & Diving, by rating weighted by review volume (table below). ## Overview Combining snorkeling and caving gives you the ultra experience of Icelandic nature. You will explore the hidden world of the lava fields on foot and underwater. The cave we will visit is called Leiðarendi. The 900 meter long lava tube offers unique rock formations, such as stalactites and shelves. Some light crawling may be required yet Leiðarendi cave has a rather easy access to the underworld wonders of the Icelandic lava fields. Snorkel in between two continents at one of the top diving sites in the planet! Silfra is located in Iceland’s National Park, Thingvellir, and is a fissure that was formed by the divergent tectonic drift of the Eurasian and North American plates. What makes Silfra exceptionally unique is not only its geological significance, but it is also world-renowned for its crystal clear, fresh glacial water. No diving experience or diving license is needed for this experience, and all the gear that you need is provided. ## Before you book - Hotel pickup: no car needed - Starts 09:00, 09:30: 2 departures a day - Food not included: bring or buy your own - Age rule: Minimum age is 12 years, please reach out… **Pickup:** Hotel pickup included ## Key facts - Price: from €295 per person - Duration: 6h–7h - Rating: 4.97/5 from 34 reviews (collected from Guidekin & Viator & Tripadvisor) - Free cancellation (see policy below) - Operator: Adventure Vikings - Group: Shared tour - Guide languages: English - Start times: 09:00, 09:30 - Booking: Instant confirmation, mobile ticket - Price checked on Viator: 2026-10-22 ## Reviews 4.97 from 34 ratings on Guidekin, Viator & Tripadvisor. 100% of ratings with a star breakdown are 4 or 5 stars: 34 of 34. - 5 stars: 33 (97%) - 4 stars: 1 (3%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 star: 0 (0%) ## What's included - Underwater photos - Caving helmet and head torch - Pick up and drop off in Reykjavik - Use of Snorkelling equipment - PADI Divemaster/ Instructor as a guide - Hot chocolate after snorkeling ## Not included - Food and drinks - Clothing suitable for the weather; waterproofs (it can be wet in the cave) - Boots with ankle support ## Itinerary 1. **Leidarendi Cave** (1h 30m) - Leidarendi cave is a 900 meter long lava tube which offers unique rock formations, such as stalactites and shelves. 2. **Thingvellir National Park** (3h; admission included) - Here we go snorkeling in Silfra Fissure between two continents ## Schedule - Runs: Mon, Wed, Fri - Departures: 09:00, 09:30 - Schedule last checked: 2026-10-22 - These are published departures, not a live seat count; availability is confirmed at checkout. ## Cancellation For a full refund, cancel at least 24 hours before the scheduled departure time. ## Good to know - Not recommended for travelers with spinal injuries - Not recommended for pregnant travelers - Not recommended for travelers with poor cardiovascular health - Suitable for all physical fitness levels - All participants must know how to swim and be comfortable in water - A maximum of 6 people per guide snorkeling and 8 participants for caving - All participants must be able to communicate in English - Please note that that dry suits can sometimes feel quite tight and constricting, especially around the neck and wrists - Minimum age is 12 years, please reach out regarding younger participants & Participants over the age of 65 need to get a physicians approval - Be at minimum 150cm (4’9) tall / maximum 200cm (6’7) tall, and be at minimum 50kg (99 lbs) / maximum 120kg (264 lbs) - Don't wear glasses, instead bring contact lenses or your own prescription mask (if you have one) - Recommended to bring a change of clothes (the drysuit has a very small chance of leaking) - If you opt for the wetsuit option you need to bring swimwear and a towel, we recommend reading the wetsuit option so you know what to expect - All participants heights, weights and age must be provided to local operator. If you do not provide at time of booking, please contact supplier immediately after booking to provide this information - Please dress according to weather - no heals or jeans - All participants will need to fill out a medical form before participating in the tour. Please find a link to the medical statement on your ticket voucher right after booking the experience to be sure if you qualify. - Note: Each guide can assist one group of up to six participants at a time. Up to three different groups can be present during this activity. - Make sure to eat breakfast before this activity - Not recommended for people with claustrophobia - Travelers should be comfortable with crawling through some tight/ low areas ## Compared with other Silfra Snorkeling & Diving | Tour | Price | Duration | Rating | Group | |---|---|---|---|---| | **This tour · #14 of 22** | €295 | 6h–7h | 4.97 (34) | shared | | [Silfra: Diving Between Tectonic Plates - Meet on Location](/iceland/reykjavik/tours/silfra-diving-between-tectonic-plates-meet-on-location/?format=md) | €253 | 3h | 4.97 (2155) | shared | | [Silfra: Snorkeling Between Tectonic Plates - Meet on Location](/iceland/reykjavik/tours/silfra-snorkeling-between-tectonic-plates-meet-on-location/?format=md) | €132 | 2h 30m | 4.95 (5169) | shared | | [Silfra: Diving Between Tectonic Plates and Pick Up from Reykjavik](/iceland/reykjavik/tours/silfra-diving-between-tectonic-plates-and-pick-up-from-reykjavik/?format=md) | €316 | 5h 30m | 4.97 (599) | shared | Ranked #14 of 22 in Silfra Snorkeling & Diving by Guidekin score (rating weighted by review volume). Prices here run from €122 to €316, median €193; typical length 5h. 1 of 22 are private. Figures are live from the tour cards; the rubric is our handpicked set, not the whole market. Full list: https://guidekin.com/iceland/reykjavik/silfra-snorkeling-diving/?format=md ## More in Reykjavik - All Reykjavik tours: https://guidekin.com/iceland/reykjavik/?format=md - This page as HTML: https://guidekin.com/iceland/reykjavik/tours/lava-tunnel-caving-snorkeling-in-silfra-with-transfer-free-photos/ Filters, the full catalogue and the URL contract for this city: https://guidekin.com/iceland/reykjavik/?format=md