Take the 2x2 La Roche sur Yon - Les Sables d'Olonne (about 35 km).
Arrived at the Health center (hospital, clinic), around the roundabout and head towards Talmont - La Rochelle.
2x2 continue this until the end.
Turn right towards Les Sables d'Olonne - Le Château d'Olonne.
To about 800 m, around the roundabout follow signs for Les Sables cornice.
Then 500 m, turn right, rue du Petit Paris.