Lake Annecy has an average depth of about 41 meters (135 feet) and a maximum depth reaching up to 80 to 82 meters (around 269 feet) depending on the source. It is a deep alpine lake known for very clear and clean water.

Depth details

• Average depth: approximately 41 to 41.5 meters
• Maximum depth: roughly 80 to 82 meters (269 feet)

These values make it the third-deepest lake in France and among the clearest alpine lakes in Europe.