Rockfalls, landslides and marine submersion harm the natural heritage of Normandy. The 640 kilometers of Normandy coast are made of pebble beaches, chalk cliffs and large areas of sand. Climate change increases the risk. Given these impressive phenomena, many elected officials are trying to launch protection work for their municipality. In Criel-sur-Mer, Etretat and Villerville, the repeated bad weather threatens what makes the uniqueness of the French maritime region. The Landing beaches themselves are threatened. Storms and erosion are exacerbated by human activities.