The long, wide identation visible on the northwestern coast of France in this ASAR image is the Rance, flowing into the English Channel between Dinard and Saint-Malo. Before reaching the Channel, its waters are barred by a 750 metre long dam forming the Rance tidal power plant.
Here, the cities of Saint-Malo and Dinard can be seen by the rivermouth, with the former on the right bank and the latter on the left bank. Saint-Malo is a walled port city in Brittany in northwestern France on the English Channel. It is a sub-prefecture of the Ille-et-Vilaine. Dinard is a commune in the Ille-et-Vilaine department in Brittany in north-western France. It is on the Côte d’Émeraude of Brittany.