| The Castillon lake is 8 km. long with a surface of 500 ha. Part of the southern tip near Demandolx is forbidden to the public, being reserved for the French Navy.
Life guards keep watch on the beaches.
There are two dams in the southern tip, one being the Barrage de Castillon and the other the Barrage de Chaudanne.
The boating centers and boat launches are in Saint-Julien du Verdon and Saint André Les Alpes.
Water activities: canoeing, kayaking, sailing, wind-surfing, water skiing, water scooters, pedal boats. Information on different outings on the lake can be found at the boating centers and through the boat rental agents.
Well marked hiking trails surround the lake.