As part of a project developed by the company studying the artificial lake of Divonne, and driven by Jean Debaud - a Divonne painter and landscaper -, the lake was created on the top of former marshlands and filled with water in 1964; this lake, with its port, beach and nautical club, completes the city’s leisure facilities and changes its landscape. The materials extracted from the lake were used in part to fill in the land in the hippodrome, which was constructed one year after the lake was filled with water. (PNRHJ - Un tour en ville, “A tour of the town”)