Inside the Thrihnukagigur Volcano Tour from Blafjoll
Are you looking for a once-in-a-lifetime experience that goes beneath the surface of Iceland’s rugged beauty? The Inside the Thrihnukagigur Volcano Tour from Bláfjöll is a mind-blowing adventure that takes you inside the magma chamber of a dormant volcano — something you can’t do anywhere else in the world. This is more than just a tour — it’s a journey into the very heart of the Earth.
The Inside the Volcano Tour is perfect for:
- Adventure seekers looking for something truly unique
- Nature lovers and geology enthusiasts
- Families with older children (minimum age is 8)
- Photographers and storytellers eager to capture rare beauty
- Anyone who wants to say, “I went inside a volcano!”
Pick up location: Blafjall
Tour duration: 4 hours
Age limit: 8 years old
Availability: May – October
Tour type: Day tour
Located just 30 minutes from Reykjavík, the Thrihnukagigur volcano is a geological marvel. It is unique because its magma chamber—the part that usually collapses after an eruption—has remained completely intact. This rare phenomenon allows you to descend 120 meters (nearly 400 feet) into the volcano’s vast, color-rich cavern. It’s like stepping into another planet.
Your adventure begins in Bláfjöll, a popular mountainous region just southeast of Reykjavík, known for its scenic hiking trails and ski areas. From here, your journey to the volcano begins with a guided hike across ancient lava fields. This 45–50-minute moderate hike offers sweeping views of volcanic rock formations, moss-covered terrain, and dramatic Icelandic landscapes.
Don’t worry if you’re not an experienced hiker — the trail is suitable for most fitness levels, and your expert guide will keep the pace comfortable while sharing fascinating insights about Iceland’s volcanic history and geology.
Upon reaching the base camp near the volcano’s crater, you’ll be fitted with safety gear and briefed by a professional crew. Then comes the highlight: the descent into the crater.
You’ll ride in a custom-built, open elevator system that slowly lowers you into the magma chamber — a spacious underground cavern roughly the size of a football field. As you descend, you’ll be surrounded by towering walls painted in deep reds, burnt oranges, electric yellows, and mysterious blues. These vibrant mineral deposits were formed by intense heat and pressure during the last eruption — over 4,000 years ago.
No photos or videos can truly capture what standing inside the Earth’s core feels like. The space is cathedral-like, quiet, and powerful—a humbling reminder of the planet’s incredible natural forces.
This volcano tour is only available during the summer (typically from May to October) when conditions are safe for hiking, and the elevator system can operate without interruption. Be sure to book in advance — spots fill up fast due to limited daily capacity.
A Rare Experience — Only in Iceland
Iceland is one of the most volcanically active countries in the world, but Thrihnukagigur is the only place on Earth where you can safely explore a volcano’s interior. Combining Iceland’s dramatic landscapes with an unmatched geological encounter is a rare privilege.
Whether you’re visiting Iceland for the first time or you’re a seasoned explorer, this Inside the Volcano Tour from Bláfjöll will leave you speechless and inspired. It’s not just about looking at nature — it’s about stepping into it.
Don’t miss your chance to journey to the center of the Earth. Reserve your spot on the Inside the Thrihnukagigur Volcano Tour from Bláfjöll and experience Iceland in a way most people only dream about.
Included:
- Round-trip hiking guidance from Bláfjöll base to the volcano
- Expert guides trained in geology, safety, and Icelandic history
- All safety equipment for the descent, including helmets and harnesses
- Access to the magma chamber via the volcano elevator system
- Icelandic lamb soup & hot drinks at base camp (vegetarian/vegan option are available)
- Group sizes are limited, ensuring a personal, immersive experience
- A chance to see wild Arctic foxes!
What to bring:
- Sturdy hiking boots or trail shoes (Waterproof recommended; the terrain is rocky and uneven)
- Warm base layers (Wool or moisture-wicking thermal clothing works best)
- Insulating mid-layer (Fleece or lightweight down jacket to stay warm)
- Waterproof and windproof outer layer (Weather in Iceland can change quickly)
- Gloves and a warm hat (Even in summer, it can get cold inside the volcano)
- Wool socks or thermal hiking socks
Most Common Questions About Inside the Thrihnukagigur Volcano Tour from Blafjall
Is the Inside the Volcano tour safe?
Yes, your safety is our top priority. Certified guides and safety technicians carefully manage this tour. The volcano has been dormant for over 4,000 years and poses no active threat. Guests are equipped with helmets and harnesses, and they descend into the magma chamber using a secure, custom-built lift system. Daily inspections and strict safety procedures ensure a smooth, safe experience for every guest.
How challenging is the hike to the volcano?
The hike from Bláfjöll to the volcano is around 3.5 km (2.2 miles) each way and takes approximately 45–50 minutes at a moderate pace. The trail crosses uneven lava fields, but no steep climbs or advanced hiking skills are needed. As long as you’re in average physical condition and comfortable walking on rocky surfaces, you can complete the hike easily.
What’s the temperature like inside the Thrihnukagigur volcano?
The interior of the Þríhnúkagígur volcano maintains a consistent temperature of around 3–6°C (37–43°F) year-round. Despite Iceland’s seasonal changes, the temperature inside the magma chamber doesn’t fluctuate — it stays cold, damp, and wind-free.
Can children join the Inside the Volcano tour?
Children are welcome, but the minimum age is 8 years, depending on trail and weather conditions. Children must be able to complete the hike on their own and follow safety instructions during the descent. If you plan to bring younger travelers, please contact us in advance so we can confirm availability and assess conditions for your tour date.
When is the best time to visit the Thrihnukagigur volcano?
The tour operates seasonally, from mid-May to October, when conditions are safe and the hiking trails are accessible. The peak season is during summer (June–August), offering long daylight hours and milder weather. However, early autumn also provides spectacular lighting inside the magma chamber and fewer crowds — an excellent time for photographers and adventurers.
How much time will we spend inside the volcano?
Guests typically spend 35 to 40 minutes inside the magma chamber. This gives you ample time to explore, take photos, and fully absorb the otherworldly atmosphere. The tour — including hiking, safety briefings, gear-up time, and the descent — takes approximately 5 to 6 hours, starting and ending at the Bláfjöll basecamp.
How deep is the Thrihnukagigur magma chamber?
The magma chamber is a staggering 120 meters (around 400 feet) deep — roughly the height of a 30- to 40-story building. You’ll descend into the volcano via an open elevator lift, slowly lowering you into the cavern while offering jaw-dropping views of colorful mineral walls formed by volcanic heat and pressure over thousands of years.
Can I take photos or videos inside the volcano?
Absolutely! Photography and video recording are encouraged. The vibrant colors and massive scale of the magma chamber are incredibly photogenic. Flash is permitted; you can bring smartphones, cameras, or GoPros. However, large camera gear such as tripods or drones may not be allowed due to space and safety restrictions.
Is transportation from Reykjavík included in the tour?
We offer two booking options:
- Meet on-site at Bláfjöll (ideal if you have your transportation)
- Round-trip transfers from Reykjavík (available at an extra cost)
If you prefer a hassle-free experience, we recommend booking the version with transportation, which includes pickup and drop-off from central Reykjavík hotels. This ensures a smooth start and end to your adventure.
What happens if there’s bad weather on the day of my tour?
Iceland’s weather can be unpredictable, and your safety is always our primary concern. The tour operates in most weather conditions, but in the event of extreme wind, rain, or fog that affects hiking or lift operations, we may need to reschedule or cancel your tour. If cancellation occurs due to unsafe conditions, you will be offered a full refund or the chance to rebook later.
Is the Thrihnukagigur volcano still active?
No — the Thrihnukagigur volcano is completely dormant. It last erupted over 4,000 years ago and has shown no signs of activity.
Do I need to book the tour in advance?
Yes, advance booking is highly recommended. Due to strict safety protocols and limited daily capacity, the tour often sells out, especially during the summer months. Booking as soon as possible ensures you secure your preferred date and time, and it gives our team time to prepare any special arrangements you may need (such as transportation from Reykjavík).
Is it true that soup is served during the Inside the Volcano tour?
Yes! One of the most enjoyable (and comforting) surprises of the Inside the Thrihnukagigur Volcano Tour is the hot Icelandic soup served at base camp after your descent. It’s usually a hearty traditional lamb soup (vegetarian options available upon request), made from local ingredients and perfect for warming up after exploring the magma chamber. Served alongside fresh bread and hot drinks, it’s a cozy way to reflect on your adventure and enjoy Icelandic hospitality in the middle of a lava field.
Can I visit the volcano without doing the hike?
The only way to access the volcano is via the guided hiking tour. Due to environmental protection regulations, there are no roads or shuttles to the crater site. The hike is essential to the experience, offering incredible views and geological insight before you descend into the volcano. If you have mobility concerns, reach out to us ahead of time—we may be able to offer recommendations or alternative experiences.
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Please note:
- The tour lasts approximately 4 hours, with about 35–40 minutes spent inside the magma chamber. This intimate timeframe allows you to absorb the surroundings and ask questions without feeling rushed.
- While the hike isn’t challenging, it requires a moderate fitness level. Dress appropriately for Icelandic weather — layers, waterproof clothing, and good hiking boots are highly recommended.
- No flip-flops, sandals, or regular sneakers — you need proper grip and ankle support.
- Dress in layers — conditions can vary between the surface hike and inside the volcano.
- Backpacks and loose personal items cannot be brought into the chamber but can be safely stored at base camp during your descent.
Recommended Accessories:
- Small backpack (To carry your water, snacks, and personal items)
- Reusable water bottle (Stay hydrated during the hike)
- Sunglasses and sunscreen (For sunny days on the lava fields)
- Camera or smartphone (Capture stunning photos inside the magma chamber — flash allowed!)
Do you have questions about this tour?
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