Park in the square between the town hall and the church in Berrien.
(S/E) Near the town hall, take the Carn ar Verger alleyway behind Saint-Pierre Church and the cemetery. At the end, turn right towards the D42. Continue straight on for 450 m.
(1) Leave the D42 and turn right after a stream towards Kernévez.
(2) Walk through the village and, on leaving it, turn left towards Croaz an Hent Cam. Continue straight on along a dirt track until you reach the Goënidou archaeological site (the remains of a medieval farm, situated 100 m to the right).
(3) Carry on straight ahead for 1.2 km.
(4) Turn right onto a track suitable for vehicles and pass under a power line.
(5) Shortly afterwards, on the descent, turn left onto a grassy track leading to the entrance to the village of Trédudon-le-Moine. At the end of the track, turn right and then cross the village, where there is a memorial stone commemorating thefirst village in France to join the Resistance.
(6) Continue to the right along the Route du Relec.
(7) At the crossroads (marked by a cross base), carry straight on for 1.8 km.
(8) Turn right onto the GR® de Pays de Morlaix. Pass La Roche Saint-Barnabé on your left. (A small path leads up to the summit for a panoramic view.) Continue to the D769.
(9) Cross the departmental road with care and, 100 m further on, turn sharply right and continue to a T-junction.
(10) At the T-junction, turn right until you reach a three-way junction.
(11) At the three-way junction with a track suitable for vehicles, leave the GR® de Pays and head down to the right to reach Kerséac’h. Turn right before the village to return to the D769.
(12) Turn left and proceed with caution for 250 m, then head up to the right towards the village of Kernon and walk through the village.
(13) After the wayside cross, turn left onto a stony, shaded path leading to the entrance to Goasquintin.
(14) Turn left onto the village road, cross the D769 with care and head straight on towards Le Mendy. Walk through the village until you reach a crossroads.
(15) Turn right and continue along the edge of a stretch of water, then veer left.
(16) Leave the road and take a track on the right leading to Le Reuniou. After the large shed, continue along a track suitable for vehicles leading to the water tower to reach the junction with the Morlaix road. (You can turn right after 100 metres to see the ruins of the Sainte-Barbe Chapel).
(17) Cross the D769 with care and take the D14 opposite to head back towards Berrien Town Hall (S/E).