Aiguilles de Chaleux

The Aiguilles de Chaleux are limestone cliffs rising alongside the Lesse river with distinctive vertical walls and stone pillars in various shades of grey. The formations showcase different patterns and textures created by natural geological processes over millions of years.

The limestone formations developed over millions of years as the Lesse river carved through the rocks, creating the vertical cliffs visible today. The site received designation as an Exceptional Heritage Property of Wallonia because of its natural geological value.

The limestone cliffs hold significance for local people as a defining feature of their natural heritage and landscape identity. Visitors come to experience these formations firsthand and appreciate how they shape the character of the Meuse valley.

Designated paths allow visitors to observe the rock formations safely, though certain areas remain restricted for protection and safety reasons. Wear sturdy shoes and stay on marked trails, especially when conditions are wet or slippery.

The cliffs display multiple shades of grey and color variations that reveal different geological layers and erosion patterns across the rock face. A section called La Chandelle stands out for its particularly steep angle and distinctive shape among the formations.