Welcome! If you dare...


Welcome to Maastricht Underground. The collective name for all the activities offered at Fort St. Pieter, the North Caves, the Zonneberg Caves, the Casemates, and the ENCI quarry.


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Check the calendar below for the guided tours per day



 

Pick your Tour


This is the place to come for both standard visits and specially tailored programmes. There is also plenty for children, and fun and exciting events regularly take place. In short, Maastricht Underground offers something for everyone. Remember, though... imagination and guts are essential.
The regular English (speaking) tours are daily in the North Caves and Fort St. Pieter. It is also possible to join a Dutch (speaking) tour at the other locations. For more information (an overview of dates, locations, and availability) take a look at Locations & Tours. We also offer a variety of activities and tailor made programmes in English, for adults and children. Take a look at Activities and Kids for a complete overview.