On the boulder of "Le Yack", above the thalweg, in the Eastern part of the sector. Sitstart completely right, traverse on a ledge of slopers and exit 1m before the left angle.
From the asphalted road, follow La Route Marie-Thérèse for 300m and go up the thalweg by a small path. The boulder is one of the first ones, on the right up the slope.
