The knowledge available on this site shows that maintaining these polders in their current condition is not the only way to approach the future of this land. The recovery of salt marsh vegetation in the Terrains François area encompasses several economic, biodiversity and landscape interests. The Orne, heavily channelled, lacks flood expansion space, thus bringing up the possibility of decompartmentalizing the adjacent polders and marshes to adapt to climate change.
The project foresees the creation of a gutter in a first rank dike. This environmental compensation for the extension of the port of Ouistreham should help restore estuarine habitats by depoldering, thus controlling the volume of incoming water while maintaining the continuity of the coastal path on the Terrains François land (Sallenelles).