After the town of Fontainemore, if you climb by car to Gressoney, immediately before Guillemore Gorge, turn left and follow the road signs to Cara and Deles.
After the village of Foy, go ahead for a stretch and, after two hairpin bends, you can park the car in loc. Frastellé. Here take the mule track climbing on the right across vegetation and terraced areas, up to the houses of Bibioun.