Thrihnukagigur Volcano: 5-Hour Reykjavik Expedition

Descend into a dormant volcano on a thrilling 5-hour tour from Reykjavik. Hike lava fields, explore Thrihnukagigur’s chamber, and enjoy a personalized small-group experience.

Duration: 6 hours
Cancellation: 24 hours
Highlights
  • Thrihnukagigur Volcano - Starting from the base of Bláfjöll, embark on a 2-mile (3 km) guided trek across ancient lava fields. The path is uneven, winding through a surreal volcanic landscape dotted with cones and fissures. This moderate hike provides an intimate glimpse into Iceland’s geological history.
    At the crater’s edge, participants will don…
What's Included
  • Guided Volcano Tour
  • Descent into the Volcano
  • Professional guide
  • All necessary safety gear, helmets, harness
  • Pickup and drop-off from select locations
  • Light refreshments
What's Not Included
  • Food and drinks
  • Gratuities
  • Outdoor Clothing and Hiking Shoes
Additional Information

Embark on a remarkable small-group journey from Reykjavik into a dormant volcano. Trek through the breathtaking lava fields of Iceland’s Blue Mountains before descending into the expansive magma chamber of Thrihnukagigur Volcano, which last erupted over 4,000 years ago. Outfitted with safety equipment, participants will explore the world’s only…

Location
Bus stop #1 - Ráðhúsið - City Hall
Vonarstræti
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Customer Ratings
4.8
(168 Ratings)
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Dominique_w
Nov 5, 2025
Inside Volcano Tour - This was the absolute highlight of my trip. Although pricey, very very VERY worth it! Our guides were humorous, knowledgeable, and accommodating. The hike to the volcano was a little long, but not strenuous and our group was full of mixed-ages from young to old. The colors inside the volcano and just the sheer size of it will definitely leave you in awe. Highly highly highly recommend!
Review provided by Viator
Dajanag728
Nov 1, 2025
The best experience! 10/10! - This was an incredible and surreal experience! An absolute highlight of our trip to Iceland. I usually try to leave reviews covering “the good, the bag and the ugly” but there was nothing bad or ugly about this - except the bus driver who drove us to the location was a very erratic driver and not the safest, no one on the bus felt very safe on the way there or back. The entire experience and the guides were 10/10. I recommended this tour to multiple people while I was still in Iceland and I will tell anyone going to Iceland to do it too. My partner and I had the best time. The inside of the volcano is like nature’s cathedral and the walk across the lava field is so invigorating. It really felt like a once in a lifetime experience. And the veggie soup we were served at the end was one of the best I’ve ever had! Thank you for such a great day!
Review provided by Tripadvisor
Adriannea_l
Sep 19, 2025
This is an experience not... - This is an experience not to be missed when visiting Iceland. The only place in the world that you can actually go into a "dormant" volcano and witness the interior beauty. The guides were wonderful and caring, and the entire experience - from arrival to departure - was second to none! HIGHLY recommend.
Review provided by Viator
Valay61
Sep 5, 2025
Unique tour close to downtown Reykjavik - In late August, my son aged 10 and I did the Inside the Volcano tour. My wife and other children (aged 12 and 10) opted to skip the tour so they could sleep in that morning. The meeting point is located ~ 30 minutes from downtown Reykjavik. Thereafter, you hike 40 minutes to another hut where you get geared up. You are then lowered into the volcano via a shaft. You have ~ 30 minutes to explore within the chamber before you head back up for delicious soup (we opted for the vegetarian option). Then, you can walk back to the original hut on your own (weather-permitting) or wait for your group to head back together. We opted for the former. Being inside a volcano for 30 minutes was a surreal experience. There is nowhere else in the world where you can do this. The price is exorbitant but it was well worth it because of how unique it is and the visual splendors you see in the chamber. I highly recommend doing this tour.
Review provided by Tripadvisor
Robert_b
Aug 13, 2025
Phantastic - Use good clothing for rainy days ! Use good shoes - you need nothing to eat. A very good soup is provided !
Review provided by Viator
Vinay_s
Aug 7, 2025
Unique Iceland Experience - Must do! - A unique experience that you cannot miss when in Iceland. This is the only place on earth where you can enter the magma chamber of a dormant volcano. There’s a mostly flat and scenic hike to get to/from the entrance of the volcano, and a thrilling 400ft ride on essentially a modified window-washing platform to get to the bottom. Amazing rock formations, beautiful colors, … a must-do activity! The guide is extremely knowledgeable about the history and geology of the area and the volcano itself. My family of 4, including kids 12 & 14, loved it - it was our #1 activity from our action-packed 9-day stay in the country.
Review provided by Viator
340liseanneb
Aug 5, 2025
Once in a lifetime experience! - What a unique experience. The pace of the tour was well organized and we didn't feel rushed or like we didn't have enough time. The staff at base camp was great offering that great icelandic stew.
Review provided by Tripadvisor
Jessie_l
Aug 4, 2025
You can’t miss this tour - This was an unbelievable experience. It’s the only volcano in the world that one can enter down 400’. The tour requires a bit of a hike(2 miles) to get to the volcano but it’s scenic and part of the whole experience…totally worth the effort. A must for anyone traveling to Iceland.
Review provided by Viator
Nancy_m
Jul 16, 2025
This is really an... - This is really an awe-inspiring experience like no other. This is the only volcano on earth where you can descend 400 feet into an actual magma chamber.
Review provided by Viator
Laura_w
Aug 12, 2025
Communication not great but experience itself was cool - The experience itself was great but the tour guide communication is not.. it took reaching out several times on several different platforms to get them to answer and it made me very anxious if I’d get a response in time.
Review provided by Viator
From $546
up to 9 guests
1 - Adult
Cancellation: Free cancellation up to 24 hours before the start of your experience (local time).