To get to the starting point, go to the Maison du Marais d'Orx located on the D71 road in Labenne.
(S/E) Walk past the Maison Béziers and join the D71, which crosses the marsh.
(1) Cross the D71 and head south along the path between the marsh bank and the canal until you reach the access path to the observatory.
First in the form of a wooden footbridge over the marsh, it turns into a path of slats laid on the sand and then into a sandy path.
(2) Turn left towards the east onto the footbridge leading to the observation post.
(3) Return by the same path to the banks of the marsh.
(2) Turn left towards the south to continue along the path between the bank and the canal. This path runs along the bank to the pumping station.
(4) Return along the same path to the car park (S/E).