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Raufarhólshellir

4.6
(
3361
)
・Tourist Attraction ・
816, Iceland

Raufarhólshellir Lava Tunnel is a fascinating natural wonder located in Iceland, about 30 minutes from Reykjavik. It is one of the longest and best-known lava tubes in the country, stretching nearly 1,360 meters (about 4,460 feet). Formed over 5,000 years ago during a volcanic eruption, this tunnel offers a unique glimpse into Iceland's volcanic past. Visitors can explore the colorful rock formations and intricate patterns left by flowing lava. The tunnel’s walls and ceiling display a wide range of colors, from deep reds to bright yellows, created by different minerals. During winter, you can also see beautiful ice sculptures that form inside. Guided tours are available to help visitors safely navigate the uneven terrain while learning about the tunnel’s geology and history. Helmets and flashlights are provided for safety since parts of the tunnel are dark. The experience allows people to walk through sections of the tube that vary in height and width. Raufarhólshellir offers an exciting opportunity to witness the power of nature up close. It's a must-see for anyone interested in geology or looking to experience Iceland's unique landscapes.

Hour
Monday: 9:00 AM – 5:00 PM
Tuesday: 9:00 AM – 5:00 PM
Wednesday: 9:00 AM – 5:00 PM
Thursday: 9:00 AM – 5:00 PM
Friday: 9:00 AM – 5:00 PM
Saturday: 9:00 AM – 5:00 PM
Sunday: 9:00 AM – 5:00 PM

The Area

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What other travelers are saying about

Raufarhólshellir

This tunnel is privately owned and accessible through a lovely 30min-1 hour long tour. Our group was guided by Alex (he was great & hilarious!) some useful tips: It’s worth booking the tour early as desirable time slots can fill up. It’s cold and parts can be rocky, so I would definitely come prepared with good hiking boots and the least amount of baggage (purses, etc) possible.

Brittany
September 30, 2025
New York, NY

What a great tour!!! Our guide, Alex, was fantastic, charismatic and VERY funny, while also being highly knowledgeable. Not a difficult walk, with stairs and walkways in the more treacherous areas. This is a great tour for adults and children, and was easily one of our favorite outings during our vacation!

Kevin Bryant
August 9, 2025
New York, NY

30 people per tour. Tour guide was informative, humorous, and friendly. The cave is lit just the right amount. The guide will turn off all the lights for a few minutes for you to enjoy pure silence and darkness - a rare treat in the modern world.

Cindy Lu
September 21, 2025
New York, NY

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Frequently asked questions

What is Raufarhólshellir Lava Tunnel?

Raufarhólshellir Lava Tunnel is one of the longest and best-known lava tubes in Iceland, formed during the Leitahraun eruption about 5,200 years ago. It offers a unique glimpse into the volcanic activity that shaped Iceland's landscape.

How long is the tour inside Raufarhólshellir Lava Tunnel?

The standard tour through Raufarhólshellir Lava Tunnel typically lasts around an hour, covering approximately 1.4 kilometers of the cave. There are also more extensive tours available for those interested in exploring deeper sections of the tunnel.

Is Raufarhólshellir Lava Tunnel accessible year-round?

Yes, Raufarhólshellir is open to visitors all year round. However, conditions inside the tunnel can vary with the seasons, with ice formations present during winter months providing a uniquely beautiful experience.

Are guided tours available at Raufarhólshellir Lava Tunnel?

Yes, guided tours are available and are highly recommended as they provide insights into the geological history and formation of the tunnel while ensuring safety. Expert guides share fascinating facts about the lava tube's creation and features.

What should I wear when visiting Raufarhólshellir Lava Tunnel?

Visitors to Raufarhólshellir should wear sturdy hiking boots and warm clothing, as temperatures inside the tunnel can be quite chilly even in summer. Helmets with lights are typically provided by tour operators for safety purposes.