Start at the small car park on the right, heading west.
(S/E) Take the path marked Chemin de Cadoudal (OSM background) heading north-west. Turn left near the hamlet of La Forest.
(1) The Cadoudal cache is on the left side of the path. Continue west.
(2) At Beg Lannec, there is an unobstructed view of the Ria d'Étel and the oyster beds. Continue along the edge of the ria.
(3) Follow the path between the pine forest and the beaches until you reach a road. Turn left onto this road to return to the car park (S/E).