Hiking between forest and mountain pasture with charming alpine hamlets. With a view of the Mont-Blanc massif, the Ayères are located at the foot of the impressive limestone wall of the Fiz.
From Plaine-Joux, go up through the station to Barmus by the motorable track. Continue through a flat crossing passing through Ayères des Rocs and Ayères d'en-Haut. After the Ayères des Pierrières, continue on the track that descends to reach the Chalets du Souay then the Châtelet d'Ayères refuge. Descend again to Lac Vert to then reach the starting point.