(S/E) Leave the MLC car park and turn right onto Rue du Pont-à-Laert (D24) for about 100 metres. Turn left towards the hamlet of Kerdoussal. Continue until you reach a barrier, then turn right onto a small road, a small path, and then another small road until you reach the D24, Route de Clohars.
(1) Follow it carefully to the left until you reach a place called Le Menhir.
(2) Turn right into a dead end. Pass the first mountain bike trail on your right, marked by a sign, and follow the next one on the right, which is much clearer. Follow a stream and continue to a road at the hamlet of Kerioualen.
(3) Take the road to the right for a short distance, and at the end of the hamlet take a path on the left (rubbish bins). In wet weather, the start of this section can be very muddy or even flooded. In this case, take the road above which crosses the hamlet and descend to the right towards the path at the end of it. Continue south-west and, after a short, fairly steep climb, you will arrive at a crossroads.
(4) Turn left, then left again after about 100 metres, and continue until you reach a road in the hamlet of Pen an Prat.
(5) Take the road to the left and follow it to Chef du Bois.
(6) Almost at the end of Chef du Bois, turn left onto a road, then take a path marked with yellow signs (PR®2). Follow this path to a stream.
(7) Cross it and follow the PR® which leads to the hamlet of Saint-Thamec
(8) Turn right and cross the hamlet, still following the markings, until you reach a fountain and a wash house.
(9) At the road, take the one on the right, cross another stream and continue towards the hamlet of Kerampellan.
(10) In the centre of the hamlet, take the first road on the right, then the first on the left and again on the right into a street that quickly turns into a beautiful path leading to the coast at Porz Lamat, where you will join the GR®34.
GR®34: marked in white and red
(11) Follow it to the right.
(12) At Portec cove, rejoin the two shortcut trails leading from Saint-Thamec. Continue on the GR®34.
End of the GR®34
(13) At Porz Bali cove, take the small path on the right that climbs northwards. When you reach Kercarn, follow the road through the hamlet to a crossroads.
(14) Take the track to the right to return to the road at Chef du Bois.
(15) Follow it briefly to the left, then descend to the right along the track (signposted) leading to Moulin l'Abbé. (From here, you can explore the right bank of the Merrien River via the coastal path or the pretty Bois de Placamen, with a picnic table at the end in an ideal location.)
(16) Cross the footbridge over the river and climb up the right-hand side via a fairly steep path until you reach a four-way crossroads.
(17) Turn right and continue to a group of agricultural greenhouses.
(18) Then take a small path opposite, slightly to the right (not marked on maps but perfectly passable and pretty). After crossing a wood, you will come out onto a small road
(19) Take it to the left.
(20) At a hairpin bend on the right, continue straight ahead along the path that leads into the woods. When you reach a road, continue straight ahead until you reach the road leading to a sewage treatment plant on the right.
(21) Take it to the right, go around the water treatment plant on the left via a small path in a meadow on the right to reach the stream, and follow it until it comes out onto a road. The path is not marked on maps, but it is clear on the ground.
(22) Go down a wooden staircase to continue following the stream along a dirt track, visible on the OSM background and well maintained (if it is too muddy, there is a parallel track on the right, slightly above), then a series of footbridges. Cross the River Merrien and continue via Pourmadenn Pont to Laër.
(23) Turn right, take a larger footbridge over the Merrien River and reach the outdoor theatre. Go around the boules court and arrive at the back of the MLC car park (S/E).