Created by the retreat of the Rhône Glacier nearly 15 000 years ago, Lake Léman is the largest lake in Western Europe.
The Rhône River enters from the east and exists by the west.
Surface area : 583 km2
Length : 73 km
Width : 13,8 km between Evian and Lausanne
Altitude : 372 m
Maximum depth : 309 m
Volume of water : 89 million m3
Temperature : 4° minimum – 25° maximum