This walk allows you to discover the Mauvoisin waterfall (right bank), passing through the little village of Les Cases. You will hear it roar and be amazed by its fury. You take the path which once led to the quarry, and then a narrowly winding path to the little hamlet of Les Praz. A little further on, you will reach the village of Mez, perched on the mountainside. From there, the way down is very pretty, taking you to the foot of the little village of Epinassey on the plain.