At the cross, the road splits in two. Turn left (dead end). Follow the road which becomes a path.
Pass between the two fields and enter the forest (chemin de Castagnou). Further on the path splits in two, turn left and go down.
At the intersection of the four paths continue straight. Stay on the main path until you come out of the forest.
At the road, turn right and follow it until you find the starting route.
At the cross, turn left and join the car park.