Avoid leaving the paths and keep your dog on a leash from April to July.
On the first small hill to the right of Le Chemin des Longs Vaux, near the parking lot. Start in Descends ta Mère and exit in the overhang to the left of Le Diktat du Hamac (see the Mini topo du Bois des Longs Vaux). Exit by Le Diktat du Hamac is 7b/7b+.