To get to the start of the hike, from Bourdeaux towards Crest, take the D756 on the right at the village exit towards Mornans, La Tour and Le Rastel. Follow the road for about 1.3 km. At the crossroads, turn right towards Le Rastel, pass the hamlet and then the small pass. At the next crossroads, keep right and continue until you reach the end of the tarmac road.
The route follows theGR®®9to Porte de Barry.
(S/E) Continue along the track and you will reach a hamlet.
(1) Turn right, passing above the houses. Follow the track furthest to the right and continue to a sharp right-hand bend at the Serre Antoine signpost.
(2) Continue along the track and reach the building at Fondoresse.
(3) Go around the building on the left and follow the track that continues behind it northwards to a hairpin bend. Take the path opposite and follow it as it climbs steadily to reach the Porte de Barry.
(4) Continue to the right, heading east. Leave the main track and take the small forest track that enters the woods. Walk about ten metres and take a small, faint path on the right. From there, follow the ridge leading to the summit of Pradou via a vague path that follows it, sometimes through grass, sometimes through a sheltered beech forest, below the ridge on the north side.
(5) Descend towards Pas de Floréal, continuing to follow the ridge.
(6) At the crossroads, continue to the right to climb back up towards Roche Rousse, following the exposed ridge and then through the beech forest along a barely visible path.
(7) Then descend from Roche Rousse, following the ridge as best you can to reach the bottom of Pré de l'Âne.
(8) Turn left and follow the valley downhill towards the north-west until you reach the first crossroads.
(9) Turn left towards Pas de Floréal, taking the track that heads west through the woods and joins Pas de Floréal.
(6) Turn right and descend the valley via the central track to the Bergerie de Bois Vert.
(10) Continue on the left (GR®®9) along the track to the Porte de Barry.
(4) Turn left to rejoin the path you took on the way up and follow it back down to the car park (S/E).
;