To the right of the red path, between the "Abri Vassal" and Aster, on the boulder to the right of Belle Trouvaille (yellow n°37). Sitstart without crash-pad with a good flake, traverse on the ledge with slopers and exit just left of the arete.
NB: passing the arete with slopers (without the good hold just above) is 7a/6c+, with the good hold 6c+/6c.