Beaches such as flatfish, sandeels and cockles have disappeared. Residents have seen the ecosystem of their estuary completely transformed.
A natural phenomenon which has accelerated since the creation of the Rance dam and the tidal power plant commissioned in 1966 by General de Gaulle. This unique industrial site in Europe provides renewable energy to 225,000 people thanks to the power of the tides. For years, environmental associations and mayors of neighboring towns have been warning about the colossal siltation.