Iceland's lava caves are awe inspiring

Hidden underneath the surface of Iceland’s vast lava fields are extensive systems of lava caves.  These caves, or tubes, were created during volcanic eruptions as molten lava flowed while also cooling at the surface.  These tubes now form an incredible underground world and are safe for exploration.  What you will find under the earth is nothing like anything you’ve seen above ground.  You will be surrounded by fantastically odd rock formations and your flashlight will bring the phenomenal display of colors to light.

Lava caves have long played an important role in Icelandic culture and folklore.  Trolls and elves are believed to live in the caves and old Icelandic literature contains many references to people hiding or living in one of the lava caves.  Your guide will be happy to tell you more about the cultural history embedded within the caves.

Your tour will begin at the Volcano House exhibit in downtown Reykjavík where two films are screened starting at 13:00. Your guide will meet you there at 14:00 and take you to the Volcanic Reykjanes Geopark  just a bit south of Reykjavík. On your lava tubing tour of  Leiðarendi cave you will be equipped with a high quality headlight, helmet, and gloves.  This tour requires some crawling and walking on uneven ground, but it is otherwise an easy activity that a whole family can do together, including children.

This tour is also available in the Snorkeling Silfra, Caves & Volcanoes tour and the Diving Silfra, Caves & Volcanoes tour.

Tour Details


Year round

  • Be in reasonably good shape, i.e. able to go on a short hike
  • Feel comfortable in confined spaces

4-5 hours

Min / Max:

Max. 6 participants per guide


Please bring:
  • Good shoes, e.g. hiking boots
  • Suitable clothes for the weather
  • Admission fee to the Volcano House 
  • Specialised caving equipment
  • Guided volcano & cave tour
  • Transportation to and from your hotel in the Reykjavík area

Please see booking calendar below

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Information about

Our People

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Snorkel Silfra & Lava Caving Combo

Walk where lava flowed


Frequently asked Questions

How long is the cave?
We use 2 different caves on this tour, depending on the time of year and weather / road conditions. Gjábakkahellir cave in Thingvellir is 360 meters long and Leiðarendi cave in Reykjanes is 880 meters long.
How long are we in the cave for?
We are usually underground for 45-60 minutes, depending a bit on the speed of the group.