Saint Disdille

Saint Disdille is a deep freshwater dive site on the French shore of Lake Geneva near Thonon-les-Bains, plunging to an impressive 60 meters along the lake's steep underwater slopes. This advanced to technical dive site offers a dramatic descent down glacially carved walls, with visibility that can be exceptional in winter months. Divers explore rocky ledges, underwater cliffs, and submerged geological features while encountering pike, burbot, and Arctic char in the cold, dark depths. The extreme depth requires careful gas management, dry suit proficiency, and ideally technical diving certifications. Saint Disdille represents the serious side of Lake Geneva diving, attracting experienced divers seeking deep alpine lake exploration.