Overview
Available languages
1 hour
Mobile ticket
Explore Iceland’s ancient underground lava tunnels at Raufarholshellir lava tunnel on a caving experience! Hidden deep beneath the stunning Blue Mountains (Bláhnjúkur), the Raufarholshellir lava tunnel is home to a volcanic wonderland of rock formations, ice, and craters. Using specialist caving equipment, follow a local guide and hike through the tunnels to the cave, discovering Iceland’s otherworldly sights at their finest and witness the inner workings of a volcanic eruption.
Additional Info
Suitable for all physical fitness levels
What To Expect
Raufarholshellir
Meet our experienced guide at the Lava Tunnel office and explore a stunning geological paradise Raufarholshellir lava tube.
Options
Lava Caving Experience
What‘s Included
Guided Tour with a Certified Caving Guide
All Necessary Safety Equipment
Helmet & Head Torch
Crampons (in winter)
Meals
Transport to and from Reykjavík
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
Reviews
27 reviews
Total reviews and rating from Viator & Tripadvisor
Our afternoon underground excursion was worth the price of admission.
tomgA9467YS,May 23, 2026
- Review from Tripadvisor
5.00The booking was easy with no issues. Transfer from our hotel to the bus terminal was convenient and from the activity site back to our hotel was direct with no transfer involved. The tour guide was outstanding, answering all of our questions and adding appropriate history of the cave experience. We wish we could remember her name.
So beautiful and interesting
BangNiang,May 22, 2026
- Review from Tripadvisor
5.00Very interesting visit. Fascinating to understand the volcanic eruption. Very knowledgeable guide who explained and gave exciting experiences
Exciting lava cave experience
StephenM484,Apr 15, 2026
- Review from Tripadvisor
5.00A great morning trip, well organised and our 8 year old loved it.
Amazing experience but expensive
Jaznae S,Mar 17, 2026
- Review from Viator
4.00Our tour guide Juan was amazing and the lava cave was a great experience. Juan was very knowledgeable, funny, and interactive with the large group. It was a little pricey being $100 for an hour but everything else was great.
Need to go!
Daydream34152573606,Feb 23, 2026
- Review from Tripadvisor
5.00Our guide was absolutely amazing! It took about an hour to get to the end and then you can walk back yourself, For the price I think it’s absolutely worth it! You learn a lot and it’s just a lovely experience overall!
Great Tour
Tour62235906163,Feb 13, 2026
- Review from Tripadvisor
5.00Lili did a great job and the tour was great! Trank you!
A must see in Iceland
Gayle W,Jan 13, 2026
- Review from Viator
5.00The lava tunnel was wonderful. The guide was friendly and extremely knowledgable. You should definitely see this
Lava tunnel
Rhonda N,May 20, 2025
- Review from Viator
5.00This was such a cool tour! You can’t exploit lava tunnels without a tour guide so it’s def something worth checking out! Our guide was very nice, funny, and informative!
Love the icicles
geeijo,Jan 21, 2025
- Review from Tripadvisor
5.00I enjoyed this trip, not too far from Reykjavik. The Lava tube was amazing adorned with icicles and upside down icicles! Our guide was super excited to show is the Lava tube and her "office".
Wonderful experience
Tasha P,Dec 8, 2024
- Review from Viator
5.00Awesome! Very cool lava tube with beautiful colors, textures, and skylights! Stunning when the water drops freeze in a pile and the lights shine through them. They look like a bunch of candles. We highly recommend this activity!
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Operated by Arctic Adventures