Two hours are needed to complete this beautiful walk which takes you along the Valserine. Access used to be difficult (due to the steep-bank) but it has been rehabilitated to offer hikers a pleasant walk.

In this almost lunar landscape one can admire the work the sea has made on the rocks. It has formed deep cracks in the rock and «Oulles» (big potholes). The river delicately threads its way along the surprisingly sculptured route.