EuroParcs Poort van Maastricht

With so many caves in Maastricht and the countryside, bump Gemeentegrot (five minutes' drive) to the top of your to-do list. Just a 20-minute bike ride or a five-minute drive away, these limestone caves were mined by the Romans and there’s an underground train that will take you into their former territory. What other caves might you want to descend upon? Over the Meuse river, Fort Sint Pieter Maastricht Underground (15 minutes) is a system of caves, tunnels and an 18th-century hillfort. During the war, many took refuge in the Casemates tunnels at the Kazematten Waldeck Maastricht Underground (15 minutes) too. When you’re not exploring this underground world, marvel at the works of art in one of Limburg's leading art museums, the Bonnefanten museum (10 minutes), or catch a show at the Theater aan het Vrijthof (15 minutes). There’s a splendid view of a marl quarry and the surrounding hills after a climb to Uitzichtpunt Sint Pietersberg (15 minutes) – just the thing for those who can’t pass up a good hike.