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Thrihnukagigur Lava Tunnel Tour

Do you dare to enter inside the magma chamber of a volcano? Delve deep into Thrihnukagigur and explore the lava tunnels coursing through it on this tour from Reykjavik.

Thrihnukagigur Lava Tunnel

After meeting your guide at 8 am in Klettagarðar, you'll climb aboard a bus and head to the southeast of Reykjavik. Following a half an hour drive, you'll arrive at the Thrihnukagigur Volcano

Get kitted out with all the equipment you need to safely enjoy this unique activity, then, with your helmet and harness on, you'll begin your 1.8 mile (3 km) hike to the volcano crater.

Climb onto the special open elevator for the descent into the volcano and marvel at the striking colours of the dramatic rocky walls of the cave as you're lowered almost 400 feet (120 metres) to the bottom. Thrihnukagigur lava tunnel awaits you! 

Explore the magma chamber of the volcano, which last erupted 4000 years ago. Did you know that this cave is so tall, it could fit the Statue of Liberty inside? Its sheer size will leave you speechless!

At the end of your tour of Thrihnukagigur lava tunnel, you'll return to the surface for the return journey to your original departure point in Reykjavik, where you'll arrive at 1 pm.

Covid-19 Measures

All of our providers comply with local legislation and applicable health recommendations regarding protective material and safety to help avoid the spread of Covid-19.

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Per person Children under 12
US$ 339.20
not permitted
  • Per person

    US$ 339.20
  • Children under 12

    not permitted

More Information


5 hours.

Language The activity takes place with a guide that speaks in english.

The activity takes place with a guide that speaks in english.


Transport by bus.

English speaking guide.

Entrance to Thrihnukagigur Lava Tunnel.

Helmet, flashlight and all necessary equipment to explore the tunnel.

Elevator ride into the volcano.

When to book?

Bookings are permitted up until 24 hours before the activity as long as there are still places. Book as soon as possible to guarantee availability.

Digital voucher

Show the voucher on your phone to take part in the activity.


No, not suitable for people with reduced mobility or pushchairs/strollers.



Frequently asked questions

  • Q - How to book?

    A - To reserve the activity, choose the date and complete the form on this page. You will receive your confirmation immediately.

If you have any other questions please contact us.

US$ 339.20
No hidden fees or surcharges
Free cancellation up to 3 days before

Free cancellation

Free! Free cancellation up to 3 days before the day of the activity. If you cancel under this time or do not show up, you will not be refunded.

Meeting point

4 Klettagarðar.