Description of the route

From Grand Tournalin mountain hut descend for a short while on the unmetalled road and then take the path to the right.
Having made a long diagonal crossing through meadows, you reach a rocky cliff.
Having passed this, the trail continues to climb over grassy and rocky humps until it reaches Col di Nannaz.
From here it descends into a grassy valley just below the pass, before climbing upwards a little way to Col des Fontaines on a rocky ridge.
The route now begins its descent, among wide open meadows, reaching the summer pasture of Champ-Sec and, further down, the district of Cheneil.
It continues its descent, entering a conifer wood and passing beside the summer pastures of Promindoz, situated on a grassy panoramic plain, before completing the descent at the village of Valtournenche.