FR-237. The double entrance of Grotte des Sablons (Sablons grotto) forms a nice natural arch very close to L'Arche des Sablons. Both are located at the bottom of the cliffs of Mont-Saleve, in Haute-Savoie department of France. IGN topographic map  Top 25 number 3430 west Mont-Saleve pleat D2. The cave is located bu black spot on the map.