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 and the Casemates. Discover the extraordinary world of Maastricht Underground!

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.

English tours are available daily in:
- The North Caves
Fort St. Pieter

Weekends also in:
- The Zonneberg Caves

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  • TripAdvisor