From the Barmasse mountain hut, continue along the dirt-track road for a brief stretch and then take the path on the left that goes down to the pastureland of Cortina Superiore; then go back onto the dirt-track road and when you come to the fork, go down on the left towards the pastureland of Cortina Inferiore.
Just before the pasture, take the path on the right that runs through a humid area into the wood and comes out onto a dirt road.
Cross the road and go along the path that runs past the Fornace pasture and on to the col Fenêtre d’Ersa.
From the col, go slightly downwards and take the dirt-track road that leads to the Vareton pasture.
From here, continue along the path through the pastureland to the Gran Raye pasture and then to lake Tsan, where you will find the Tsan bivouac.
From here the route climbs up to the col Fênetre de Tsan, from where it begins to go down, first around a series of bends and then along a long traverse on the mountainside, which ends at the plateau with the Reboulaz bivouac and the magnificent Luseney lake.
Cross the torrent that emerges from the lake and start on up, passing by a number of ruins.
A steep slope climbs up to col Terray, from which a rather steep descent begins, and the route then continues round the mountainside, moving up and down until you reach a grassy plateau.
Cross a torrent towards the left, and after a little promontory you will come to the Cunéy mountain hut.