Raufarhólshellir Lava Tunnel: Underground Expedition

Discover Iceland’s stunning lava tunnels with this guided underground tour. Explore ancient formations, enjoy darkness and learn about geology—all for $61.

If you’re considering a trip to Iceland and love the idea of stepping beneath the surface of a volcanic landscape, the Raufarhólshellir Lava Tunnel tour might be just the thing. While we haven’t done it ourselves, the reviews speak volumes about what you can expect from this underground adventure. It’s a chance to walk through one of Iceland’s longest lava tubes, created over 5,000 years ago by a mighty eruption. Truly, it’s a blend of natural wonder and geology that’s hard to beat.

What we really like about this experience is how accessible it is all year round and how much information guides share along the way—making it as educational as it is visually stunning. Plus, the opportunity to turn off your lights and experience total darkness is a rare treat. One possible consideration? The terrain can be a bit uneven and slick, so sturdy shoes are a must. This tour suits curious travelers who want a mix of adventure, learning, and a bit of wild Icelandic nature.

Whether you’re a geology buff, a family with older kids, or just someone seeking a unique underground experience, this tour offers a memorable peek into Iceland’s volcanic past. It’s a well-rounded activity that balances practical accessibility with the wow factor of exploring a lava tube.

Key Points

Raufarhólshellir Lava Tunnel: Underground Expedition - Key Points

  • Accessible year-round with guided tours that include helmets, headlamps, and crampons in winter
  • Educational and fun, with guides sharing fascinating facts and stories
  • Rough terrain means good walking shoes are essential for safety and comfort
  • Darkness experience offers a rare chance to see total blackness underground
  • Great value at around $61 per person, offering about an hour of exploration
  • Highly rated with over 1,250 reviews averaging 4.7/5, indicating consistent quality and enjoyment
You can check availability for your dates here:

An Honest Look at the Raufarhólshellir Lava Tunnel Tour

Raufarhólshellir Lava Tunnel: Underground Expedition - An Honest Look at the Raufarhólshellir Lava Tunnel Tour

If you’re curious about Iceland’s volcanic history, this tour provides a front-row seat to one of the island’s most impressive natural features. The Raufarhólshellir lava tube stretches for a significant length—making it one of the longest in Iceland—and walking through it feels like stepping into a natural cathedral carved by fire. The guides do a good job explaining the geology and history, making the experience both stunning and educational.

What the Tour Entails

Your journey begins at the meeting point at Þorlákshafnarvegur, where you’ll gear up with a helmet and headlamp. During winter, crampons are provided, which are invaluable for navigating the slick, uneven stone surfaces. The terrain can be a bit tricky, with some slippery patches and uneven footing, so good walking shoes are a must. Expect a roughly one-hour walk through the tunnel, following along a designated footbridge route.

Guides lead the group, sharing stories of the cave’s formation, tales of Hollywood filming locations, and details about the striking geological formations such as stalactites, ice stalagmites, and the colorful mineral deposits that adorn the walls. As one reviewer described it, “The guide gives you information walking in and then you can come out at your own pace so there is plenty of time to take the photos you would like to have.” This flexibility is a real plus, especially if you want to capture the moment or simply soak in the surroundings.

The Darkness and Light

One of the highlights—literally—is how the guide turns off the lights at one point to give everyone a taste of total darkness. It’s an eerie, memorable feeling to be in complete blackness, with no sense of direction or sight, just your other senses heightened. Many travelers find this part surprisingly profound and a little humbling, as one reviewer noted, “It was a unique experience to walk where the lava passed and experience absolute darkness.”

The Visuals and Geological Wonders

The lava formations are what truly make this experience stand out. The tunnels are filled with iridescent lava tubes, icicles, and colorful mineral deposits. Even on a day with less time to explore, it’s easy to be captivated by the natural sculptures and the story they tell about Iceland’s fiery past.

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Authentic Insights from Travelers

The reviews paint a consistent picture: guides are engaging, knowledgeable, and passionate. Several mention how their guides brought the cave’s stories alive, adding humor and personality that made the experience even more enjoyable. For example, one reviewer said, “Our guide was energetic and knowledgeable and she led us into a large long tunnel formed by lava thousands of years ago. The icicles made it even more magical.”

Others appreciated the value, noting the tour’s reasonable price. At $61 per person, it offers about an hour of immersive exploration, which many find to be worth every penny considering the uniqueness of the site.

Accessibility and Suitability

While the terrain can be challenging, the tour is suitable for anyone comfortable with walking over uneven surfaces. It’s not specifically advertised as family-friendly, but older children who can handle some physical activity would likely enjoy it. The emphasis on safety gear and the guided format ensures you’re in good hands.

Practicalities

The meeting point is straightforward, and the activity can be canceled up to 24 hours in advance for a full refund, adding some flexibility to your plans. Booking in advance is recommended, especially during peak seasons, and there’s an option to reserve now and pay later, keeping your plans fluid.

Who Should Consider This Tour?

Raufarhólshellir Lava Tunnel: Underground Expedition - Who Should Consider This Tour?

This experience is perfect for those interested in geology, natural wonders, or just looking for a unique adventure underground. It’s especially appealing if you’re keen on learning about Iceland’s volcanic landscape from knowledgeable guides and don’t mind a bit of uneven footing. If you’re traveling with older kids or teens who can handle some walking, this is a great family-friendly activity, provided they’re comfortable with darkness and a little rugged terrain.

Final Thoughts

Raufarhólshellir Lava Tunnel: Underground Expedition - Final Thoughts

All in all, the Raufarhólshellir Lava Tunnel tour is a solid choice if you want to see a major volcanic feature up close without the need for strenuous activity or long hours. The combination of stunning visuals, compelling stories from guides, and the thrill of experiencing total darkness makes it a memorable Icelandic adventure. For the price, you’re getting roughly an hour of guided exploration that’s both fun and educational.

While the terrain is a minor consideration—requiring sturdy shoes and caution—the overall experience delivers a lot of value. If you’re interested in geology, natural formations, or simply want to do something a little different from waterfalls and glaciers, this underground expedition is well worth considering.

The Sum Up

Raufarhólshellir Lava Tunnel: Underground Expedition - The Sum Up

If you’re after an authentic, accessible way to explore Iceland’s volcanic past, the Raufarhólshellir Lava Tunnel offers a well-organized tour that ticks many boxes. It’s particularly suited for curious travelers who love learning on the go and don’t mind a bit of physicality. The guides’ enthusiasm and the breathtaking sights make it a highlight for many visitors, and the reasonable price ensures it remains a popular choice.

This experience isn’t just about seeing a tunnel—it’s about stepping into a piece of natural history and experiencing a landscape shaped by fire over millennia. Whether you’re a geology enthusiast, a family wanting a memorable outing, or simply seeking something intriguing to do, this tour has something for you.

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Raufarhólshellir Lava Tunnel: Underground Expedition



4.7

(1253 reviews)

“It was an informative, interesting tour. The guide gives you information walking in and then you can come out at your own pace so there is plenty o…”

— Ingrid, May 28, 2025

FAQ

Raufarhólshellir Lava Tunnel: Underground Expedition - FAQ

Is this tour accessible year-round?
Yes, the Raufarhólshellir Lava Tunnel is accessible all year, with guided tours available regardless of the season. In winter, crampons are provided to help navigate icy patches.

What should I wear for the tour?
It’s best to wear sturdy, comfortable walking shoes given the rough and uneven terrain. Since the environment can be moist and slick, good footwear is a must. Dress warmly if visiting during colder months, as parts of the cave can be chilly.

How long does the tour last?
The tour is approximately 1 hour long, offering enough time to explore the tunnel at a relaxed pace with your guide.

What is included in the tour price?
Your ticket includes a guided tour, helmets, headlamps, and crampons during winter. The experience is designed to be straightforward and safe, with all necessary safety gear provided.

Is the tour suitable for children?
The tour is generally suitable for older children who are comfortable walking on uneven surfaces. There’s no specific family designation, but kids who can handle some physical activity and darkness will enjoy it.

Can I cancel the tour?
Yes, you can cancel up to 24 hours in advance for a full refund, offering flexibility if your plans change.

Are there any photo opportunities?
Absolutely. The lava formations and mineral deposits make for fantastic photos. You’re free to take pictures at your own pace after the guided portion.

Is this tour good value for money?
Given the roughly one-hour guided experience with expert guides, helmets, and crampons, many travelers find the $61 fee to be worthwhile, especially considering the uniqueness of walking through a lava tube in a volcanic landscape.

If you’re planning a trip to Iceland and want a memorable, hands-on peek into its volcanic history, this tour is a smart pick. Just remember to wear the right footwear and bring your curiosity. Happy exploring!

You can check availability for your dates here: