Park in the car park at Place Kilmacow in Saint-Thurien.
(S/E) Set off to the right towards Querrien, then, after about 250 m, turn right again towards Rostrennec.
(1) At the left-hand bend at the end of the road, follow the path to the right, cross a field (very wet area) and continue along the path after a small stream. Join the access road to Le Geurnic and turn right.
(2) Carry on along the road to the left, cross the junction and reach the houses at Kerganet.
(3) Take the small path on the right after a shed. Once at the end of the path, continue along the road opposite, following the sign for “Les jardins de Kerbellec”.
(4) Pass the houses and continue along a path (not shown on the IGN map) which descends into a small valley.
(5) At the junction, turn right towards Pont Croac’h and you’ll come out onto the D6. Cross carefully and take the road opposite the path, heading towards Pont Croach.
(6) Just before reaching the hamlet, turn right into a field until you reach a track after passing a house and a shed. At the end of the track, turn right, follow the edge of the field and you’ll reach the track leading to Coat Kerrous.
(7) Turn left, then immediately right towards Kergoulaouen.
(8) Turn left to reach the banks of the Isole. Then turn right to follow the stream through a steep-sided valley, before veering off to the right and heading up another valley towards Kerbail and Kerdilis. This section does not appear on any map, so the app will be very useful.
(9) At the end of the track, turn right, go to the end of the road and turn left. Pass the first road on the right towards Kersaint, then take the next one towards Roz-Feunteun.
(10) Before reaching the end of the road, turn right at the entrance to the second field. Cross a small stream below, head left, then take a right-hand bend to follow another stream, a tributary of the Isole. You’ll reach the Stang-Feunteun wash house.
(11) Continue along the road and join the D23 at the entrance to Saint-Thurien. Cross carefully, then make a first turn left then right to enter a narrow lane. Keep to the right at the junction just ahead and head towards the church, then on to the Place du Centre.
(12) Carry on to the right, continue straight ahead at the junction to return to Place Kilmacow and the car park (S/E).