_ Start _: Drive to Porz Stang on the West coast of the Quiberon peninsula.
Leave your car in the sandy car park.
(S/E) Cross the road to reach the path to the right. Follow the cliffs and the various beaches.
Most of the time, the path is marked out to avoid trampling by vegetation.
Shortly after the start, descend to the beautiful beach of Port Bara, where the path is bordered by a fine wooden fence.
(1) Further on, you pass Port Rhu and the Pointe de Marie Venell, with the Pointe du Percho, topped by a ruin, in the distance. Later, Porz Guen and its large beach. This is also where you'll see a beautiful arch carved into the rock.
(2) Following the coastline, which then bends to the left, climb up a little to reach a cliffside dolmen. Then reach the Pointe du Percho, where the remains of a Douaniers' house can still be seen.
A few kilometres ahead, you'll see the island of Groix, with Belle-Ile in the distance on the left.
Continue along the cliff to Beg en Aud. From here, you can see Portivy, a little further on the Fort de Penthièvre and in the distance the buildings of Lorient.
(3) Go around this point to catch up with the road leading to Portivy. Follow it a little until you reach a car park, and then turn right onto the path that takes you back to the ruins of the Maison des Douaniers on the Pointe de Percho.
(2) From there, retrace your steps along the cliffs to return to Porz Stang and to the car park (S/E).