After the Col du Cucheron, take the D102b, turn left onto a narrow road just before the hamlet of Les Reys and park at the end of the tarmac road.
(S/E) Take the forest track, which further on becomes a path, and reach a crossroads.
(1) Take the right-hand branch, then turn left to reach a large clearing with a wooden sign at the end indicating the start of the 120 Lacets trail.
(2) Turn right, then after a fairly long traverse, the hairpin bends become tighter and follow one after the other until you reach the Col du Frêt. Some sections require the use of your hands. Reach the Col du Frêt.
(3) Descend and reach the Col de Bovinant.
(4) Take the normal route south on the left, which is the Sentier des Moutons. Follow it to the summit of Grand Som.
(5) Descend eastwards to the start of the Racapé trail, marked by a sign.
(6) Take the path on the left and descend carefully to the Col des Aures.
Be careful here: there is a cable-assisted section before you reach the pass.
(7) Turn left here onto the track and climb up to reach the Crête des Aures. A good path leads to the end of the ridge.
(8) Turn left and descend diagonally into the forest. After two hairpin bends, join a transverse track on the right, which is not very visible at first but becomes clearer further on. Further on, you will reach a crossroads marked by a small cairn.
(9) Take this path on the left and reach the bottom of the valley. Leave the path and take an old forest track on the edge of the national forest, which is barely visible and passes near a forest marker.
(10) Here you have two options:
- Turn right into a narrow, steep and difficult valley that joins the path taken on the way up. (route)
- Turn left to rejoin the trail just before the wooden sign marking the start of the 120-turn trail.
(1 or 2) Retrace your steps to return to the car park in the hamlet of Les Reys (S/E).