Starting point: Kerhournou beach car park
(S/E) Turn left and take the steps leading to Rue de Locmerven. On the right, join the coastal path (GR®34) and continue. Turn left at the first path leading to the Saint-Meen Chapel and its fountain, about 100 m from the coast.
(1) Continue along the path uphill, turn left and continue along this path.
(2) Pass a house and turn left again. Continue along this path until you reach a small road that leads back to the car park where you started.
(3) Climb the dune that runs along the beach to reach the next car park (at low tide, you can cross the beach by going down the small slipway).
(4) Leave the coast on your right and head north along the small road for about 200 m, turn right, then left onto the first path and follow it to Pont ar Floc'h.
(5) At the road, turn left and head north to reach Bourg de Trézien.
(6) Turn right, then left. The fountain is on the left at the entrance.
(7) Pass in front of the church built in 1875. Its portal bears the Breton motto of the Du Chastel family: "Da vad e tui" (You will become good). Continue on the left until you reach the calvary in the heart of the village, which is home to a few old houses with characteristic chimneys. Continue on the right for about 200 m.
(8) Take the small road on the left that turns right to the village of Penn an Dreff.
(9) Descend on the left towards Porz Tévigné Beach.
(10) Take the coastal path south through the Ruscumunoc dunes. Pass the campsite and continue: view of the Trézien lighthouse (photo). The high cliffs replace the dunes as you approach Pointe du Corsen. The CROSS-Corsen (Regional Operational Centre for Surveillance and Rescue at Sea) has been based here since the Amoco Cadix disaster in 1978. At the point, head towards the orientation table and continue along the coastal path. (photo)
(11) TheGR®34runs along the top of a small beach and continues along high cliffs pierced by caves and crowned with masonry structures holding a stone with a hole in it. A pole fixed in this hole was used to pull up the seaweed harvested on the beach below. Here there is no longer a beach, but only inaccessible coves. (This part of the coastal path is more rugged).
(12) Continue along the path to return to Porsmoguer Bay.
(4) Return to the car park at low tide via the beach or the path overlooking the beach (S/E).