Inside the Volcano

From: € 312
Duration: ~ 5 hours

Inside the volcano tour, literally takes you inside a dormant volcano, through the top crater and to the bottom of its magma chamber that once was filled with red-hot molten lava. Iceland is one of the few places in the world where you can enter a volcano's magma chamber


  • Descending into the heart of a volcano
  • Exploring the colossal magma chamber
  • Amazing colours in hues of red, yellow and purple
  • Learning about volcanoes and volcanic activity


  • Round-trip transportation
  • Professional travel guide
  • All necessary safety gear, helmets, harness etc.

Tour Itinerary

Located in an ancient lava field near Reykjavik, the unique Thrihnukagigur volcano is one of just a handful of places in the world where you can literally descend into the heart of a volcano and explore its gigantic magma chamber.

Following a volcanic eruption, magma chambers usually collapse, but in Thrihnukagigur, the lava drained out like water from a pipe leaving the volcano's plumbing system empty. For this reason, Thrihnukagigur crater is one of few places in the world where you can enter a volcano and explore its magma chamber.

Inside the volcano tour literally takes you into the volcano, through the top crater and right to the bottom of its magma chamber where molten magma flowed during an eruption 4.000-years ago.

The Thrihnukagigur volcano is reached via an hour-long walk and entered by way of an open cable lift, a descent of 120 metres. 

Inside the volcano, the ground space is equivalent to around three basketball courts, and the centre cavity could easily fit the Statue of Liberty.

Please note

  • Wear outdoor clothing and proper walking/hiking shoes - trainers and jeans are not sufficient.

Pickup points

Not booked your hotel yet? Hotel not listed? Staying with a friend/family?

Don't worry, you can give us that information when you add this item to your cart.

Pickup Info

Please present your electronic travel voucher / ticket at the time of tour departure.

Tour departure point
The Gray Line Bus Terminal at Klettagarðar 4 is the central departure point for our tours.

Pick up and drop off
Pick up from hotels, guesthouses and designated bus stops starts 30 minutes before the tour departure time stated on your voucher.
Check in at Gray Line Bus Terminal is 15 minutes before the tour departure time stated on your voucher.

Need assistance?
Our call centre is open 24 hours every day of the year. This means that whenever you need, there’s always someone from Gray Line Iceland available to assist. Call: 354 540 1313 or e-mail:

312 5 hours

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Rating & Reviews


excellent driver kept us on track

25 February, 2019 by Mrs Alison Carnemolla on Grayline Tour


Once in a lifetime!

11 November, 2018 by Mrs Nicole Guzdek on Grayline Tour

not a happy experience with Gray Line Iceland


Though I booked 8 tickets just hours before the departure time which was definitely not wise, the slow communication made me a lot of trouble. I was noticed by email that the booking failed and 2 hours later told me that the reservation however was not cancelled and the staff would rearrange it. I tried to contact the staff via the number provided in the email, but never had the phonecall was never answered no matter what time or how many times I called. My 8 group members already arrived at the departure point and the on-site staff from another compay already helped make the rearrangement, then I received the email that Gray Line Iceland will rearrange the tour and "perfectly" ignored the my request for a valid phone number.

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28 October, 2018 by Mr xiaoping geng on Grayline Tour

Excellent Tour


The tour is excellent. The tour guide is very informative. Also, the tour pick up on time.

02 October, 2018 by Mr Kai Heng CHENG on Grayline Tour



Great support. Friendly guides and drivers.

17 September, 2018 by Mrs Romy Nigg on Grayline Tour


Timely pickup

05 September, 2018 by Mr Freddy Haroon on Grayline Tour

Amazing Day!


Fantastic Day! Guides were great and the hot soup at the end of the trip was perfect.

01 September, 2018 by Ms colleen hayes on Grayline Tour


Great experience!!

22 August, 2018 by Ms YOUJEONG Kang on Grayline Tour

wonderful experience


The arrangement was perfect and the tour guides were so nice and helpful.

20 August, 2018 by Ms TSZ YAN TANG on Grayline Tour

Excellent tour, excellent guide, good service



07 August, 2018 by Mr Shekhar Desai on Grayline Tour


The guides were knowledgable, friendly and informative. The downside was the changes in the excursions which were changed at short notices for what ever reason. Although I was able to change my plans to for in other people might not be able to.

09 June, 2018 by Mr Stephen Lofty on Grayline Tour

If I had a chance I'd do it again


There is something that definitely should be done if you want to be proud of yourself. Be ready that the way to the volcano is not easy- 3 km turn into with head wind and rain. Waterproof boots are highly recommended. But all difficulties are worth everything you'll see below the ground. There are no words that can express the beauty and uniqueness of the place (however, this refers to Iceland in general). Ed Sheeran's "I See Fire" in my opinion is the best soundtrack for this tour.

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05 June, 2018 by Mrs ANNA MODNA on Grayline Tour


it is an good experience of getting inside. But the guide is walking too fast at the front.

04 June, 2018 by Ms Tin Chi Mak on Grayline Tour


It was very convenient and quick

23 May, 2018 by Ms Tripti Upadhyaya on Grayline Tour

Amazing place & team


Great for everything

23 October, 2017 by Mr Chee Shyang Ho on Grayline Tour




06 October, 2017 by ?? Ai Ling Liang on Grayline Tour

Excellent customer service


Quick to reply and easy to follow instructions

11 September, 2017 by Ms Angela Ning on Grayline Tour


Works as swiss clock.

04 September, 2017 by on Grayline Tour

Confiabilidad y puntualidad


Es muy confiable, ademas de ser muy puntuales y tanto los conductores como los guias muy agradables e hicieron muy amenas las excursiones

02 June, 2017 by Ms Alicia Susana Prados on Grayline Tour

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