Start point: This is a route inside the Grau Roig sector of the Grandvalira ski domain. We can reach the Bony d'Envalira peak from any sector, but the most direct way is from el Pas de la Casa and Grau Roig. From the Grau Roig sector, we take the Coma Blanca ski lift, followed by the Coma III. From el Pas de la Casa we take the central ski lift and then Coma III. When we get off the ski lift, we will go down the blue slope and come to an artificial lake and hut; from this point we have a front view of the two gulleys of the Bony d'Envalira. We approach the base of the gulleys and climb either of them with crampons and ice axe. Once on the top, we have an easy choice because they are both together. A 45-minute climb.

Descent of corridor no. 1: This is the longest of the two corridors and is very steep at the beginning with 50°max between rocks which make it difficult to manoeuvre, but after a few metres the gulley becomes wider and the slope drops to 40°-45° giving us a winding corridor with very good snow conditions thanks to its orientation.

Descent of corridor no. 2: A more direct corridor, very beautiful and a little shorter than the first but with the same conditions. The entrance is more comfortable as it has no rock obstacles, just when there is little snow we might find a couple of rocky passages that we will have to jump, but with a lot of snow these passages have no particular problem. The exit of the two gulleys takes us back to the blue slope and to Grau Roig.

Parking area: (42°31'58.09"N and 1°42'1.36"E).

Drop: 45-50°

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