Day trip

Inside the Thrihnukagigur Volcano: Day Trip from Reykjavik

Activity provider: Inside the Volcano

Inside the Thrihnukagigur Volcano: Day Trip from Reykjavik

Activity provider: Inside the Volcano
Likely to sell out
Likely to sell out

From US$ 333.62 per person

Descend 400 feet (120 meters) into the crater of Iceland’s Thrihnukagigur Volcano and experience a unique phenomenon of nature inside one of the country’s top attractions.

About this activity

Free cancellation
Cancel up to 24 hours in advance to receive a full refund
Covid-19 precautions
Special health and safety measures apply. Learn more
Reserve now & pay later
Keep your travel plans flexible—book your spot and pay nothing today. Learn more
Duration 6 hours
Check availability to see starting times.
Live tour guide
English, Icelandic
Pickup included
Pick-up at hotels/guesthouses in Reykjavik starts 30 minutes prior to departure. Please be ready at that time in front of the building or at the bus stop assigned to your hotel/guesthouse.


  • Enjoy a scenic hike across a lava field, like the surface of the moon
  • Learn more about volcanoes and volcanic activity in Iceland
  • Get an amazing view of Reykjavik, the Reykjanes peninsula and the Snæfellsnes peninsula
  • Experience a very close encounter with a volcano
  • Get your adrenaline pumping on a crater descent
  • Taste delicious traditional Icelandic meat soup
Full description
Enjoy a hiking tour towards the dormant Thrihnukagigur Volcano. After your transfer and drop-off at the Bláfjöll mountain cabin, walk to Thrihnukagigur Volcano, a moderate hike of approximately 45-50 minutes, enjoying the breathtaking lava scenery en route. The hike is classified as moderately difficulty, with straight walks and limited elevations. But the surface is hilly and uneven. Upon arrival at the crater, descend 400 feet (120 meters) inside the volcano, and experience an extraordinary natural phenomenon. You will be informed about all safety procedures and how to behave inside the volcano, wearing a helmet and harness at all times. Each group is split into a smaller party of 4-5 people for safety and intimacy. After a slow 10-minute descent, to ensure the safety of passengers and provide ample opportunities to experience the amazing views, spend up to an hour inside the volcano (or less if you prefer). Expert guides will be with you at all times. End with a feast of traditional Icelandic meat soup or a vegetarian soup along with hot coffee, hot chocolate, tea or water.
  • Pick-up at your hotel in Reykjavik
  • All safety gear (helmets, harnesses, etc.)
  • Guides
  • Traditional Icelandic meat soup, coffee/tea and some sweets (vegetarians alternatives available)
  • Transfer back to your hotel in Reykjavik
    Not suitable for
    • People with mobility impairments
    Covid-19 precautions
    Safety measures in place
    • All areas that customers touch are frequently cleaned

    Select participants and date



    Important information

    What to bring

    • Hiking shoes

    Know before you go

    • Please wear good hiking shoes and warm clothes. The weather in the mountains is unpredictable and can be very different from ground level. Sneakers and jeans are not suitable.
    Customer reviews

    Overall rating

    4.8 /5

    based on 129 reviews

    Review summary

    • Guide
    • Transportation
    • Value for money
    • Safety

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    Star rating:

    Fantastic experience! It was so easy from the booking of the trip, to the pickup at our hotel, to the adventure itself. Our guide, Jonas, was fantastic also. The excursion itself was a leisurely pace, mostly flat walk with a few stops where Jonas pointed out interesting things. The food was also great! I give this 5 stars and will definitely recommend it to my friends and family.

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    June 29, 2022

    This was the best day of a fabulous week in Iceland for me. The unique opportunity to experience the inside of a magma chamber was one we felt was too good to miss and it certainly did not disappoint. We were lucky to have beautiful weather for the walk, which was an experience in itself, and made even better by our two lovely guides ‘second name Freya’ and Kristian who were both extremely helpful, friendly and informative. Everybody else involved, at base camp etc, was also very welcoming, helpful and amusing and the meat stew and hot drinks were very well received on our return to camp. This was a wonderful experience all round and I would have no reservations in recommending it to anybody.

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    June 23, 2022

    After initial difficulties finding our bus (which was our fault) we were immediately rebooked by the lady responsible for the next tour 2 hours later and then had no problems. Everything went very quickly and the lady from Grayline was very friendly and competent. Our guides at the volcano were super funny and really nice. I am really afraid of heights and had no problems or fear because you are well secured and can hardly see completely into the cave from above and only when you are on the ground and look around do you realize how big the cave is. Everything was perfectly organized! It was definitely worth the money considering the scaffolding and air is erected and picked up by a helicopter each winter and needs to be reassembled and serviced in the summer. A unique experience!

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    June 11, 2022

    Product ID: 33718