Running above the municipality of Saint-Martin-de-Queyrières, this circuit offers a tranquil, simple walk along easy, accessible paths.

This mountain bike route invites you on a discovery of one of the key climbing sites in the Pays des Écrins, called the Rocher Baron. You will then pass through two small hamlets in the municipality of Saint-Martin-de-Queyrières, both built around their alpine pasture chapel. Both villages stand on the banks of the mountain stream which has shaped the Saint-Sébastien valley. The circuit ends with a descent through a conifer forest overlooking the municipality.