On the boulder to the left of B'haut Pilier (orange n°26), 20m above le Chemin des Cassis, before its crossing with le circuit des 25 bosses. Sitstart to the right of a flat stone, low traverse above that one, pass the round angle, continue with big holds in the overhang and exit via the crack.
NB : it is also possible to exit by the slab on the left of the crack (same difficulty). The there and back traverse has also been realized (7b).