On a boulder with L'Ancien n°31 Jaune, underneath the blue path, 100m past the sector Thorgal. Sitstart completely right with small holds, traverse to the left and exit above the starting point of En Attendant Buoux.
From the parking lot, follow the blue path towards Trois Graines d'Éternité. After the character "D", leave the sector Thorgal on the right and continue for 100m along the blue path. The boulder is underneath on the left, 30m after a remarkable tree.