40m to the right of La Route de Bois d'Hyver, 100m after the crossing with La Route de la Roche aux Moineaux. Sitstart in the back of the roof as for Boulder in Roof, climb the roof directly and mantle up on slopers.
Follow La Route de Bois d'Hyver and turn right 100m after the crossing with La Route de la Roche aux Moineaux; the boulder is 10m behind a small chaos.
