On the hills around Comblain - hidden in the green - there is a rock formation where you will find a treasure trove of biodiversity. More than 500,000 years ago, this dolomite rock literally surfaced at the hands of the Ourthe: for thousands of years the river tried to work its way through the rock, but failing that, the river made a bend with an amphitheatre-shaped meadow in it, against the background of a rock wall. This consists of dolomite, a mixture of magnesium carbonates and calcium, which makes them very hard and has a dark color. Over the millennia, the river has carved another path, into softer rock, and so are these witnesses of the former landscape. Various plants that are typical of dry, warm limestone soils grow on the well-lit slopes. Oak, hornbeam and ash stretch their branches here to catch a little sun. The calcareous grassland with its typical flora is maintained by sympathetic Ardennes fox heads (sheep). During the high season, orchid lovers will get their money's worth here. The area is managed by the non-profit association Ardenne en Gaume and is co-financed by the European LIFE project Hélianthème (Comblain walk no. 1). Label : Certified Nature Reserve, property of Ardenne & Gaume vzw. Listed Exceptional Heritage Area
Bus 377, 142 Stop: Place Leblanc.