Superb trip with a fantastic guide - Alex made this trip a true adventure - unforgettable experience, I must say! The best parts: the ice formations and the formidable darkness and silence in the tunnel.

Epic experience - highly recommend! - Epic experience - was even more spectacular in real than the pictures. Lara was a superb guide and made the experience even more enjoyable. Highly recommend!

Absolutely amazing place - Absolutely amazing place, especially during winter season! One of the "must visit" attractions in Reykjavik!

Super - Tour guide really informative, interesting and helpful would recommend the tour to others Just the right amount of time to get the most from the tunnel

Fun and interesting experience - My family enjoyed walking through the lava cave. Our guide was friendly and knowledgeable. The group stayed together on the way out but we could walk back slowly and take lots of photos on the way back.

I've never heard my husband say "awesome" so many times! - A really interesting hour. The guide was fab (so sorry but I didn't catch her name). She was very knowledgeable and incredibly patient whilst I took hundreds of pics! Thank you, we'll never forget the experience.

Short and entertaining - If you are looking for a short and entertaining tour not too far from Reykjavik, the Lava tunnel tour is a good choice. You go about 400 meters in, 30 meters deep. The guide was very fun. We booked it with transfer from the BIS terminal which went smoothly.

Well worth doing - On the whole this was a very good trip to do. Not overly long so ideal if you have a morning or afternoon to spare. The tunnels are quite spectacular and the guide very good. You are supplied with hard hats and crampon’s for your boots as the floor of the caves are rocky and uneven and up and down so be aware if you’re balance isn’t good , we’re in our 60’s and had no problem. One negative is the bus pick up can be confusing as there can be several buses picking up different people for different tours and the same time and they are not always clearly marked. They also will take you to the bus station first to be transferred to your coach. It’s ok once you get used to it ask the bus driver if you’re unsure they’re usually helpful apart from one miserable chap we had for this tour. To conclude the lava tunnels are well worth doing.

Not 3 hours but less than 1.5 - It was less than 1.5 hour walk down the tunnel and not 3 hours as advertised. The information provided by the guide was trivial. The experience felt overpriced and overrated

Everyone should walk through a lava tunnel - We met the bus at BSI. Left on time. Our lava tour started on time after a brief safety talk. The walk is easy but can be slippery and could be challenging for someone with balance problems (ice, dark, small staircases) Vanessa was our guide and was great. The lava tube is amazing and a must see while in Iceland. Our bus dropped us off at a bus stop near our hotel. We were back home in the anticipated time frame.