Lake Geneva ( Lac Leman in French Language ) was formed by a withdrawing Glacier and has phenomenal Depth.
The average Depth is 154.4m while its deepest Point between Lausanne and Evian is an impressive 310 Meters.
Here, Lac Leman is also at its widest at 14 km. The longest Straight Line measure is 73 km. The average Watersurface Level is 372m above Sea Level.