Parking is available at the Nestavel Bihan car park in the commune of Brennilis.
(S/E) From the Nestavel Bihan car park, head towards the village and the dam, then follow the banks of Lake Saint-Michel northwards. Continue to the municipal campsite.
(1) Continue left along the lake and follow a dirt track, which can be wet and muddy in places, towards the Venec bog, a designated National Nature Reserve. Stay on the track until you reach the road.
(2) Turn left and continue to the crossroads.
(3) Turn left again until you reach the three-way junction. Continue to the three-way junction.
(4) Leave the road and take the middle path, which you should follow until the first fork (approximately 800 m).
(5) Turn left and take the path leading to the Roudouhir stream. Cross it and take the footbridges to cross the marshes to the tarmac road.
(6) Continue straight ahead along a path leading to Kernévez.
(7) Leave the hamlet on your right and head left until you reach the first fork.
(8) Turn right onto a gravel path that crosses the Stêr-Red and Ellez streams in succession.
(9) Continue straight ahead on the dyke and footbridges until you reach the first crossroads.
(10) Turn left. Continue straight ahead towards the east to pass at the foot of Roc'h Cléguer (316 m) and continue to the local road, first turn right then left.
(11) Follow this road to the left until you reach the entrance to the hamlet of Forc'han, keeping to the left.
(12) At the crossroads in the hamlet, keep left, then follow the road that continues on. Continue to the end.
(13) Follow a sunken lane, pass the Maison du Lac (EDF) and turn right, keeping as close as possible to the lake.
(14) Head left towards the dam and cross the Ellez, following the signs to the starting point at Nestavel Bihan (S/E).