If you enjoy swimming or other activities in more tranquil waters, take note that the largest lakes in France are to be found in the Landes! Head to one of these sites to try your hand at watersports on calm water or simply bask in the sun. Cazaux and Sanguinet Lake, straddling the Landes and the Gironde Biscarrosse Lake Soustons Lake The Lake of Aureilhan, a stone’s throw from Mimizan-Plage Hossegor Lake And Parentis Lake