The hike starts from the car park on the left bank of the Scorff on the D769 just before the bridge towards Le Faouët.
(S/E) Cross the bridge and follow the D769 for about 300 metres (be careful, this is the busy Lorient-Roscoff road).
(1) Take the second road on the left (shortly after passing a second-hand shop) to go around the industrial estate, then follow the D769 on the left again for about 300 metres.
(2) Turn left towards Guilligomarc'h onto a quiet tarmac road. Stay on this road for about 1.2 km. After passing Commananchou and a wide bend to the left, you will arrive at a farm and the first houses of the hamlet of Castel Paris.
(3) Turn left at the farm onto the wide farm track going up into the Ty Meur woods. Stay on this track for about 1 km. It leads to the hamlet of Coat ar Houc'h, which is now abandoned.
(4) In the hamlet, turn right and continue for about 400 metres.
(5) Turn right towards the Saint-Julien Chapel.
(6) Shortly before the road connecting Guilligomarc'h to the village of Ty Meur, on the right, a faint path leads to the village. Cross it.
(7) Take the road on the left to reach the road leading to Guilligomarc'h about a hundred metres further on. Follow this road to the left. It passes in front of the Saint Julien Chapel.
Stay on this road (which has little traffic) for about 1.2 km to reach the hamlet of Kermentec.
Note: about 400 metres after the chapel, avoid the first road on the left leading to the village of Kervinel as it is a dead end.
(8) Turn left towards the village of Kervinel. Walk through the village. At the end of the village, the road continues as a path that descends gently into the valley.
(9) Take the path on the right that descends towards the Scorff. Here you will find the local signposting for the Stang mill. Avoid the two paths that lead prematurely to the Scorff upstream. They are dead ends.
(10) From here, you can see the river below. The path quickly joins the banks of the Scorff, which it follows for about 1 km to reach the Stang bridge, passing by the former site of the Stang mill, which has now disappeared as a result of the exploitation of the Kervinel granite quarry.
(11) Turn left onto the wide farm track that crosses the river via the Stang bridge.
(12) At the end of the bridge, take the path on the left that follows the river for about 2.5 km. Pass the Moulin de Poulhibet mill on the opposite bank and return to the car park where you started (S/E).