Descend into 20,000 hand-carved sandstone corridors beneath Mount Saint Peter — a labyrinthine underworld used by Romans, WWII resistance fighters, and artists. This is Maastricht's most extraordinary secret, revealed only with a knowledgeable guide.
What to expect
Your guide leads you deep into 2,000-year-old passages where medieval quarrymen, Napoleonic soldiers, and Dutch resistance fighters all left their mark. Torchlight catches centuries of inscriptions and charcoal drawings on soft marl walls. The temperature drops to a constant 10°C — a dramatic contrast to the sunlit city above. Emerge with a profound sense of having walked through living history hidden from most visitors.
Good to know
Tours depart from the Grotten Noord entrance on Luikerweg; pre-book online as slots fill fast. Wear a warm layer and flat shoes. Allow 75 minutes. The caves are a 15-minute taxi or rideshare from the city centre — factor this into your all-aboard schedule.
Sail there
Luxury cruises that call at Maastricht — book through us, the fare is identical and your concierge stays on your side.
More to do in Maastricht
- Maastricht Private City Highlights Tour with Official Guide
- Basilica of Saint Servatius: Treasury & Private Access Visit
- Fort St. Pieter & Casemates: Underground Fortress Guided Tour
- Stokstraat Quarter & Wyck: Luxury Shopping & Artisan Food Walk
- Thermae 2000: Luxury Thermal Spa in the Valkenburg Hills