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Park at Col du Pré.
(S/E) Take the route along the road signposted "La Roche Parstire". The climb is direct, with no warm-up, first through the woods and then across mountain pastures.
The route is easy: follow the trail to reach the ridge, ignoring any other trails you come across. Pass the altitude points 1916m and 1961m and a memorial stone. You will reach La Roche Parstire (2109m).
(1) Continue along the ridge, pass the "petit rocher" (small rock) to reach the Passage de la Charmette (2058m).
The landscape on this section is breathtaking, with alpine flowers and snow-capped mountains adding to the beauty of the site, which is ideal for a picnic with a view. This ridge is also part of the Tour du Beaufortain and a mountain bike trail.
(2) Turn right to switch to the western slope of Arêches. Begin a fairly steep descent through lush vegetation, passing streams and finally reaching pastures at Les Acrays (1,704m).
(3) Turn left, heading south, onto the path to reach the hamlet of Faitaz.
This detour allows you to take photos of Lake Saint-Guérin.
(4) Return to the Acrays crossroads.
(3) Head north. Follow the road. At an altitude of 1656m, turn right. Continue to Le Perrier.
(5) Turn left. Here, begin the climb through the mountain pastures. To the left, you will see the village. To the right, you will see the steep Roche Parstire massif. Pass by a large, attractive wooden house before reaching the Ravines Rouges area at a crossroads.
(6) Turn left to finish on an easy, shaded path (botanical trail) and return to the car park where you started (S/E).
. Like MTPAULY, we did it in the opposite direction so as not to turn our backs on Mont Blanc. In hot weather, it's good to start in the cool because the whole first part is in the shade.
: so we extended our hike and walked back along the ridge southwards to the Col du Couvercle
Visorando member
Difficult 
Very difficult 
