Coming from Créances, take the D650 called "La touristique" towards Barneville-Carteret and just after the communal forest of Lessay turn left in the direction of Saint-Germain-Sur-Ay "Les Mézières".
Coming from Barneville-Carteret, take the D650 towards Agon-Coutainville and turn right towards Saint-Germain-Sur Ay bourg.