After following the D182A for a few kilometres, you will arrive at the Lac de Pierre-Percée dam.
Park your car in the dam car park. Enjoy the view of the lake, and a few metres further on, along the road, you'll see a covered area with notice boards and an orientation table.
(S/E) Follow this direction along a red sandy track to reach a footpath 100m further on, to the left of the road, which runs down the side of the lake with yellow circle markings filled in with green (unusual markings). Reach a bench on the edge of the lake.
(1) Admire the ruins of the castle on the other side of the lake. Continue along the shore of the lake to join the path marked with a green disc/red circle.
(2) Take this path on the left; it descends slightly along the lake.
Continue along this path as far as the pier, where you will see that it has been renamed the Sentier du PQ (!).
(3) Cross the pier and continue along the road to find a trailhead on the left.
(4) Head west along this path a little further on, behind the security fence. Continue along the lake until you come to a crossroads at the ruins of the Xaveure.
(5) Follow the forest track to the left and then, 200m further on, take the steps on your right.
Climb this path to reach another forest road 200m further up. Turn left and continue for around 500m to reach the small path (unmarked and slightly obscured by bushes) leading to the Roches de la Xaveure.
(6) Turn right and, after a short, steep climb, admire the rock shaped like an elephant's head 50m higher up and turn right onto the path that runs alongside the rocks.
As you continue along the Roches de la Xaveure, you will also pass the Roche du Guichet.
(7) Continue along this path as far as the forest track and turn right in the direction of Vierge Clarisse to reach the forest hut.
(8) Take the mountain bike path opposite to get back onto the main road 200 m further on. Cross the road to take the forest track opposite and, about fifty metres further down, turn right onto the footpath marked with a green rectangle.
Continue along the right-hand path until you reach Château de Salm.
(9) Visit it and enjoy the lovely view over the lake. Take the path to the left of the castle, heading south towards the village of Pierre-Percée.
(10) Go through the village to join the "Croix Rouge" forest track opposite where you came from. Leave a water tank on your left and continue as far as the three-way junction.
(11) Continue along the left-hand track, then come to a new crossroads at a right angle.
(12) Turn right onto a footpath and head back down towards the main road and your starting point (S/E).