At the border between shaded forest and altitude meadows, discovery of an unusual rock, witness of prehistory.
- Departure: L’Envers de Lanslevillard (carpooling 3.5 km from the CIS)
- Ascent in the forest of Lanslevillard to the Pierre des Saints by the passage of the Single.
- Descent through the hamlets of Chantelouve overlooking the river Arc.
