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Explore Iceland’s underground wonders on the Raufarhólshellir Lava Falls Adventure Tour. A thrilling, expertly guided caving experience for adventure seekers.
If you’re craving an adventure that combines history, stunning natural formations, and a good dose of challenge, the Raufarhólshellir Lava Falls Adventure Tour promises exactly that. This 3-hour excursion takes you deep into one of Iceland’s largest lava tubes, with the highlight being the rare lava falls at the tunnel’s end. With a solid rating of 4.8 out of 5 from 33 reviews, this is clearly a favorite among travelers who want to see the volcanic heart of Iceland from a totally different perspective.
What we love about this experience is how it balances adventure with accessibility—you get to explore impressive formations and hear incredible stories from knowledgeable guides, all while being challenged physically in the best way. The small group size (max 8 people) ensures a personalized, safe, and engaging journey.
However, a few considerations are worth noting. This tour involves navigating difficult terrain, including large boulders and uneven surfaces, which might not suit everyone, especially those with mobility issues or claustrophobia. Plus, the price of $170 seems reasonable given what’s included, but it’s important to appreciate the value of this authentic underground adventure. It’s ideal for fit, adventurous travelers who enjoy hiking and exploring unique geological features.


The tour begins with a meet-up at the designated start point, where you’re briefed about safety and the day’s adventure. You’ll be equipped with a helmet, headlamp, and in winter months, crampons—gear that immediately signals just how serious this underground trip is. The tour is led in English by an experienced guide, often praised for their professionalism and friendliness, like Anna, who guided one reviewer through multiple lava falls, answering all questions with patience and depth.
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Once underground, the atmosphere shifts dramatically. We loved the way the dark environment accentuates the glowing, vivid mineral colors on the walls—each twist and turn revealing new patterns shaped by volcanic flows over 5,000 years ago. The terrain is rugged, with large rocks and boulders, making hiking challenging but rewarding. You’ll travel over 1.3 kilometers inside the lava tube, navigating through narrow passages, crawling through low sections, and stepping over obstacles.
One of the most awe-inspiring sights is the lava falls—a formation so rare that only a handful of places in the world showcase similar features. Many reviewers, like Birgit, emphasize that spending nearly five hours inside the tunnel was well worth it, thanks to the astonishing views and the sense of stepping back in time.
The lava falls are the culmination of the tour, and their stunning, flowing shapes captivate everyone. Guides often make sure to pause here, allowing you time to soak in the view and take photographs. We also appreciate how guides like Sóley and Alizée are praised for their professionalism and wealth of knowledge, adding context and stories to what you’re seeing.
This course is definitely more suited for those who are comfortable on their feet, enjoy a good hike, and can balance navigating uneven terrain. Several reviews mentioned the importance of wearing good hiking boots with ankle support, without which participation is not allowed. The tour is not recommended for pregnant women, those with mobility impairments, claustrophobia, or heart conditions.
While no prior caving experience is necessary, the tough terrain and length of the underground duration (3-4 hours) make it a physically demanding activity. One reviewer pointed out that a good sense of balance and fitness are essential, as the tour involves trekking over large boulders and up and down hills.
This adventure is best suited for adventurous, physically capable travelers who want something more than a typical tour. If you enjoy hiking, geology, and unique landscapes, this will likely be a highlight of your Iceland trip.
The small-group format allows for a more intimate experience, with personalized attention from guides like Anna, who tackled questions about lava formations and the cave’s history with enthusiasm. Reviewers appreciated the flexibility that guides showed in adjusting the schedule if others in the group couldn’t complete the full experience.
At $170 per person, the tour offers exceptional value for what you get—a three-hour, guided exploration in a stunning natural setting. The prices include helmet, headlamp, and crampons (in winter), making it straightforward to prepare and participate without extra costs. There’s no included transportation or food, so planning to arrive on time and bring snacks or water is recommended.
The tour is private, meaning you’ll travel with your own group, which enhances safety and comfort. It’s worth noting that the minimum age is 12, so families with teenagers will find it suitable, provided they’re physically capable.

The authenticity of the experience, combined with expert guides and the chance to see rare geological features, makes this a compelling choice. Many reviewers mention that guides like Anna, Sóley, and Alizée make the tour not only informative but also fun, with a good balance of professionalism and friendliness.
The ability to see the lava flows from over 5,000 years ago, observe vivid colors, and walk through large caverns and narrow passages offers a truly unique perspective on Iceland’s volcanic activity. The lava falls—a formation difficult to witness elsewhere—are a particularly memorable highlight.

This adventure is perfect for adventure-minded travelers who are comfortable on uneven terrain and want an active, authentic experience. It’s ideal for those interested in geology, volcanic activity, and off-the-beaten-path experiences. If you’re seeking a photography-worthy journey or just love exploring underground worlds, this tour will deliver.
However, if you have mobility issues, are claustrophobic, or prefer less physically demanding activities, this may not be the best fit. The tour’s challenging terrain and duration mean it’s best suited for those with a good fitness level and a sense of adventure.

The Raufarhólshellir Lava Falls Adventure Tour offers a rare peek into Iceland’s volcanic past, with an immersive experience that combines adventure, education, and stunning visuals. It’s a fantastic choice for travelers who want to push their limits a little and see something truly unique.
The small group setting ensures a personalized experience, and the guides’ knowledge adds valuable context to the visual spectacle. While the physical demands may be a barrier for some, for those who are fit and ready for a challenge, this tour provides excellent value and memories that will last a lifetime.
If you’re after a genuine underground adventure that’s more than just sightseeing, this lava tube tour is well worth considering.
“It was my second time in Raufarholshellir, this time with my 13 year old son, and he loved it. We did the trip to all three lava falls and extra de…”
Is prior caving experience required?
No, but you should be comfortable walking over difficult terrain. The tour involves traversing large boulders and uneven surfaces.
What should I wear?
Bring comfortable hiking shoes with ankle support and a jacket. In winter, crampons are provided, but sturdy footwear is essential.
Is the tour suitable for children?
The minimum age is 12, so it’s suitable for teenagers but not younger children. It’s best for those who can handle physical activity and challenging terrain.
Are there any safety precautions?
Yes, helmets and headlamps are provided. The tour is led by experienced guides who prioritize safety and will give instructions throughout.
Can I book the tour last minute?
Yes, you can reserve and pay later, with the option to cancel up to 24 hours in advance for a full refund.
What is included in the price?
Guided tour in English, helmet, headlamp, and crampons during winter months. Transportation and food are not included.
To sum it up, the Raufarhólshellir Lava Falls Adventure Tour offers a thrilling and educational underground journey into Iceland’s volcanic roots. It’s a great pick for explorers, adventure lovers, and anyone eager to see something extraordinary that few travelers get to experience firsthand. Just remember to come prepared, be physically ready, and embrace the challenge for a truly unforgettable Icelandic adventure.