We have already walked around the Sint Pietersberg and the Caestert Plateau and the ENCI quarry several times. Wonderful adventure. Now going underground as well. We chose the Zonneberg caves. We are shown around by an enthusiastic man named Charles. He jokes a lot so it is never boring listening to him. Learned a lot about the history of Maastricht. It's a pity that only basic guided tours are given after the autumn holidays. Because of this we miss the storage facility of the Nachtwacht. We also missed some photo opportunities. Despite that, we were still able to quickly take some photos, partly for our geocaching account. Nice experience!

Typically we don’t love doing group tours as we like to explore ourselves but this was well worth doing. Eric, our guide, was extremely knowledgeable and charming. He explained the history and the wall carvings in great detail and it is clear he has a lot of passion for his job. This visit is a must on a bucket list of Maastricht.

Very interesting experience! I was not expecting that much but the tour was really good! A lot of interesting information about how and why the caves were formed and our guide Wim was really nice! It’s worth the money! Also the cafe close by is a good option to have some warm tea after the tour! Don’t forget to bring some good jackets since it’s 11 degrees inside the caves!

First, I would like to thank our tour guide, Willy. It was not a simple explanation of the site, but a fantastic experience and an excellent history of Maastricht's old times. I thoroughly recommend adding this the underground tour of your visit to Maastricht. I will be back to visit the fort, but due to lack of time, I could catch the tour in the same day.

Weather outside was rainy so we decided to take a tour around caves. We had amazing guide (Paul) who had so interesting, funny and educational stories. Really enjoyed this tour and recommend to others. Maybe not the best choice if you’re claustrophobic or afraid of dark, otherwise worthy of title - best to do activity in the city.

I was in the caves with my son, daughter in law and grandson. I am from Maastricht my son also.. But my daughter inlaw is from New Zealand, and we want to show her the caves. We had a great guide.. Joe also nown as Nico! He explaint al lot that I never know about my own town. My grandchild Johan was hidden in his fathers jacket untill the end... Hilarious, to see and hear. Joe daankewel veur de geweldige roondleiding in de grotten en auch in de kluis.. Hanny Bas Jess en Johan

We did the English fort and cave tours. Our guide was Willy and he made the experience exceptional. We learned so much and in a very fun way. Willy kept our attention, was very friendly, knowledgeable and had a great sense of humor. The fort and cave are unique and interesting. Highly recommend this experience.

Today we took part in one of the most amazing man-made cave tours. Joanne our tour guide kept our group engaged from start to finish. We learned how the caves came into existence, farmers' unconventional and creative use of the caves, and WW2 historical events that included rescuing allies fighters and aiding Jewish people in escaping from the Nazis. We took the extended tour which included the art vaults. One has to hear the stories and simply be in awe in amazement at what lengths were taken to save those art treasures. A must-see tour.

It's the second time I have been there. Every time was different. It seems like each tour guide has their own route of showing things to the tourists and apparently they have their ways of explaining things which I appreciate. They showed us this wonderful historical site from their own perspective. Maastricht is a great city to visit, with all the festivals, activities as well as culture and history and this underground cave is definitely special and so different from other things you can experience in a popular city. I highly recommend it. It's about 30 minutes' walk from the train station and you can always book a tour on their website.

We did the art vault tour - our guide (first time running the vault tour) was fantastic and fun drawing on his background in standup comedy at Edinburgh (!). He always asked the group if we wanted more facts and we all kept saying yes so we were underground for nearly two hours! My friend HATES guided tours and only tolerates them if you have to take a tour to get in. He came out saying how he thoroughly enjoyed it. There is no fixed route which added something special and slightly tailor made to our experience. Highlight was the vault but the real gem was hearing how the caves changed over time. Overall a very fun experience with a very professional set up. We booked online the day before for the 15.15 English tour.. Our tour started at the Fort which was a short and easy walk from the old town. At the meeting point they sold coffee/water and had a toilet so you can arrive a little early and relax before your tour.