
From Le Carrefour de l'Obélisque at Fontainebleau, follow the N6 for 2200 mètres and park at Le Carrefour de la Mayenne. Take Le Chemin de la Percée up to the crossing with the blue path. The first boulders are easily seen on the left, with the huge Dame Jeanne d'Avon, and the other sectors can be find further along the path.