Municipality of Orlu Altitude: between 750 m and 2750 m in altitude Location: located 5 km from Ax-les-Thermes Number of inhabitants: 154 Distances: Ax-les-Thermes 6 km Orlu is a municipality of high mountain mainly recognized for its valley of the same name, it offers an exceptional natural mountain environment, preserved and accessible. At its heart, Orlu has the famous Orlu National Wildlife Reserve, known for the beauty of its landscapes, its easily observable mountain fauna (marmots, chamois, birds of prey, etc.) and its traditional human activities. This protected natural territory is of particular interest for hiking and the scientific studies on the fauna and flora that are carried out there. This very rich heritage makes the Vallée d'Orlu the natural center of the Ariège Pyrenees. The Orlu Valley has nearly 10 nature and outdoor leisure tourist facilities, numerous and diversified accommodations, and two authentic villages nestled in the heart of a wild setting, for all lovers of nature and outdoor sports. , and for all those looking for mountain sensations. The Maison des Loups, a real local treasure, the tree climbing course, the hydroelectric power station and the Mountain Observatory are among the essential elements of the Orlu Valley. From the Forges d'Orlu car park, it is possible to take the hiking trail the chemin des cascades, leading you to the Fanguil car park, which then offers other hiking departures through the National Reserve, in particular the one bringing you to the Prairie d'en Gaudu, then to the refuge of En-Beys. Town hall opening hours: Monday, Tuesday, Thursday and Friday: 9 a.m. to 12 p.m. and 14 p.m. to 17 p.m. Wednesday: 9 a.m. to 12 p.m. and 14 p.m. to 16:30 p.m.