The Lava Tunnel | Raufarholshellir Caving Tour

To explore the lava tunnel, you will need good hiking shoes, a willingness to clamber around, and a helmet and torch.
The Lava Tunnel is truly dramatic, creating enormous gorges and caverns beneath the surface.
The colours inside of the lava tunnel are breathtakingly vivid.
Lava Tunnels are formed by earth cooling quickly over a hot lava tunnel, thus creating a hollowed space.
There are steps inside the Lava Tunnel in order to alleviate the physical requirements of climbing underground.
A Lava Tunnel provides fantastic photography opportunities.

Descend into another world on this fascinating tour into Raufarhólshellir lava tunnel, one of the longest and best-known caves in Iceland. Walk the path the smouldering hot lava created thousands of years ago. This tour is suited for anyone with a sense of adventure and a passion for the gems of the natural world.

You’ll be picked up in Reykjavík in the morning and driven south, in the direction of the town of Hveragerði where you’ll find the cave. Raufarhólshellir is estimated to be around 1360 metres, making it the fourth longest cave in Iceland.

Once you arrive, you’ll be equipped with a protective helmet and a flashlight. Your professional guide will lead you down into the tunnel and to its unique rock formations. As you traverse the tunnel, your guide will tell you everything about the cave’s geology and Iceland’s volcanism. 

You’ll navigate the cave’s halls in comfort on the recently constructed footbridge, which will lead you to various viewing platforms. That way, you’ll be able to marvel at the fantastic range of colours of the cave’s walls caused by minerals churned up in the eruption that created the cave without worrying about your footing.

If you visit the tunnel in the winter, when frost engulfs the land, you’ll find the cave decked with dazzling ice formations that hang from the ceiling and rise from the ground. As the light hits them, they sparkle and become iridescent, especially considering the colours of the lava rocks under the ice. 

The cave was formed in an eruption east of the mountain range Bláfjöll some 5,000 years ago. Flowing hot lava moved beneath the surface until the stream ceased and the rock cooled. What was left was this long cave which gets up to 30 metres wide and 10 metres high.

Don’t miss this fascinating opportunity to explore the secret world under your feet. Lace up your boots and join this family-friendly tour. Check availability by choosing a date. 

Quick facts

Tour information:
  • Available: Dec. - May.
  • Duration: 3 hours
  • Activities: Caving, Sightseeing
  • Difficulty: Easy
  • Languages: English
  • Highlights: South Iceland, Reykjavík, Raufarhólshellir
Pickup information:
  • Starting time : 08:30 12:30,

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.
  • Pickup and drop off in Reykjavík

  • 1 hour guided cave tour

  • Flashlight in cave

  • Protective helmet in cave

  • Lunch and Dinner

What to bring:
  • Warm and waterproof clothes

  • Good hiking shoes

  • Your Camera

Good to know:

Reserve this tour

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
Free cancellation
Free pickup
No credit card fees
No booking fees
Best price guaranteed by Reykjavik Excursions
The Lava Tunnel | Raufarholshellir Caving Tour

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