The caves were discovered by accident in 1958 during the expansion of a local limestone quarry.
The site contains one of the largest stalactites in the Benelux region, measuring several meters in length.
The cave system is one of the rare sites in Belgium that is still being naturally carved by an active underground river.
Scientific studies of the cave's dripstones have provided researchers with data on prehistoric climate changes in the region.
The Caves of Hotton are a protected geological site recognized for their exceptional stalactite and stalagmite formations, including some of the largest in Belgium. The site features an active underground river, the Ourthe, which has shaped the subterranean landscape over millennia. Visitors explore the caves via guided tours that descend 65 meters below ground level. The cave system is divided into various chambers displaying diverse calcite colorations, ranging from white to ochre. It holds a classification as a 'Wallonia Exceptional Heritage' site due to its geological significance. The cave temperature remains constant at approximately 12°C throughout the year.
The 'Cathedral' chamber, which features the most expansive display of diverse stalactite formations.
Wear warm clothing as the internal temperature remains at 12°C regardless of external weather.
Choose sturdy, non-slip footwear to navigate the 65-meter descent and steep subterranean stairs.
Bring a camera with good low-light capabilities, but avoid using flash if prohibited by the guide.
Do not attempt to explore beyond the designated tour path or wander off from the guided group.
Closed on certain weekdays during the winter off-season; check official site for seasonal schedule adjustments.
No touching of the cave formations is permitted to prevent oil transfer and preserve natural growth.
