Cabin des Graus

Cabane des Graus sits at 2,362m in the Alpes-Maritimes, deep in the backcountry between the Vallée de la Vésubie and Vallée de la Tinée. The approach is serious mountain terrain. From Venanson (800m), allow 5–6 hours to reach the cabin via the GR5 and waymarked paths; the route climbs steeply through forest before breaking into alpine meadows and scree. A shorter alternative starts from Auron ski station (1,600m) and takes 3–4 hours. Both routes demand fitness and route-finding ability.
This is a tiny, basic refuge serving mountaineers and experienced hikers crossing the high plateaus of Mercantour. Two beds only means you're sleeping shoulder-to-shoulder. There is no guardian and no prepared meals. You'll find a stove, basic shelter, and sometimes a water source nearby. The cabin is unmaintained by any major federation—it sits in rough country where self-sufficiency matters. Summer and early autumn are your only realistic windows; access is shut by snow from November through May.
Before attempting this climb, verify current conditions locally. The cabin is popular as a tactical overnight stop for traverses toward Mont Bégo or the Vals de Tinée. Given the capacity and lack of facilities, this is a choice for parties that understand what "basic" means and can navigate unmarked terrain. Have a backup plan if the cabin is occupied or inaccessible.