Le grand Glacier is an ice cave located 300 meters to the west of the small ski area of Margeriaz (Les Bauges Range Regional Natural Park) in Savoie department of France. The entrance of the cave has an enlarged crack on this side which makes the grotto should be classified like a natural arch. The cave is located by black spot has "Grand Glacier" on the topographic map Top 25 number 3432 west Les Bauges pleat F1.