I would recommend this not just for people interested in volcanos. - The tour was informative and interesting. The drive there is also beautiful so give yourself some time to stop and enjoy. Our tour guide was great. He answered all of our questions.

Don't miss it! - Fantastic experience in the lava tube! Beautiful and informative, and our guide was wonderful. I was concerned about feeling claustrophobic, but the chambers are big and everyone has their own light. Be prepared to experience full darkness! There are 2 staircases to climb down, and then up to leave. They are very skinny, so the steps are small, and the metal is cold and slippery. Be careful!

Beautiful experience - Beautiful experience. Prepared Guide who explained everything well. Hooking on an old review of those who gave a low rating because of the children screaming.... what's the fault of those who organize?! Even when we went there was an Asian family with two children who did not stand still and lit torches in the moment of darkness and silence. The Guide reprimanded them, but if the parents do not say anything you what the fault are those of the.tour!??! Anyway rude children aside, it was a wonderful experience that I would recommend to everyone!

Great experience! - Great experience!! It is perfectly positioned along the route around the peninsula. The kids loved it! It was a fun and interesting experience. It’s a truly amazing natural phenomenon!

Breathtaking and educational activity with guide Anita - A unique experience a lava cave with good guidance from guide Anita. In a small group you descend at a leisurely pace and get extensive information about the origin of the caves etc. Anita also takes pictures into account and she lights up where necessary. The most unique part of this activity was the ‘black moment’, literally breathtaking. In short, highly recommended!

Interesting place to visit - Our guide Anita was very knowledgeable and excellent. She explained how the caves were made very well. There are 2 spiral staircases but fairly easy to manage. We visited 3 lava chambers and each was interesting. We arrived early for our booked tour and she was very helpful in changing our booking to an earlier time. One lady struggled with the uneven surface and Anita took her time and helped the lady as needed. Her enthusiasm rubbed off on all of us. I would recommend this tour

Caves made from magma - Great guide! She was very informative and seemed to really enjoy what she was doing. Lots of steps on a spiral staircase but worth it if your knees can handle it. Would recommend this tour.

The cave “tells” the geological history of the place! - Very safe and informative tour. The cave tells the story of local geology. Very knowledgeable and attentive guide. The cave walk is very easy. Very interesting geological formations. It is worth it!

Phone support not working!! - In and of itself, the tour was very good. Unfortunately, there is no phone support if you have a Booking Referral problem. Although a number is given, an automatic answering machine comes in Icelandic... On site we were able to explain our late arrival and got a later appointment. That was very nice!

Utterly Unprofessional and Unaccommodating - Vatnshellir Cave's at 5 PM was the very first tour our family booked when making our Iceland itinerary. We had been very excited to visit what had been marketed as "the journey to the center of the earth from Jules Verne's story." However, our experience ended up being completely marred by unprofessionalism and a lack of basic customer service from the staff. After booking, we received an email advising us to use the WC at another location, as there was no WC at the meeting point building. We reached the Malarrif Visitor Center WC around 4:50 PM, only to be met with two single-stall bathrooms, resulting in a line outside. Concerned about being late, we called Summit Adventure's number BEFORE 5 PM, but no one answered—unusual for a supposedly reputable tour operator with posted working hours until 5 PM. By the time all members of our family had finished using the WC, it was 5 PM. We rushed to the meeting point and arrived just minutes past 5 PM, NO LATER than 5:05 PM. To our shock, the woman at the building ignored us initially when we walked up, then immediately started SHOUTING at us even before we said anything. She claimed that the tour group had left after waiting for 5 minutes, with was not true since we were there before 5:05 PM. When we stayed calm and asked her for help in our situation, she just continued to scold and insult us, clearly already having no intention to help us. During our trip to Iceland, we had booked two other tours where the operators demonstrated flexibility and understanding. Although we managed to arrive on time for those tours, we still witnessed the basic customer service shown by the people to their customers who were running slightly late. For instance, during the Inside the Volcano experience at Þríhnúkagígur, the team waited about 15 minutes past the start time to address everyone. Similarly, at the Jökulsárlón Ice Cave tour with Arctic Adventures, our guide went around the parking lot looking for another family and only started the tour 10 minutes after the scheduled time. As these tour operators knew that they had a responsibility to their customers after receiving our money, they showed patience and professionalism, understanding that unforeseen delays can happen. To be clear, we DID NOT cancel our tour, as we had tried our best to arrive at the meeting location as soon as we could. Due to the female staff's refusal to accommodate or assist us, we had no choice but to leave. We then requested a full refund via both a feedback form and email, as the company has clearly failed to provide a service for the money we have paid, only to be met with an outright refusal and no reply after our response back to them (again, this lack of response further reflects poor customer service). This experience was incredibly disappointing. I strongly advise future visitors to reconsider booking with this operator, as their behavior was unacceptable and they failed to uphold even the most basic standards of customer service. In contrast to the many other nice Icelanders we met, who were genuine and straightforward, this company was exceptionally unfriendly. Their behavior suggested a lack of concern for customer satisfaction. As mentioned above, there are many other much better tours in Iceland—DO NOT waste your money on Summit Adventures.