First you'll reach the small village of Verclause, then climb up to Rosans, where you can appreciate the 12th-century Tour Carrée around which this medieval village was built. A small road then takes you to the Col de la Fromagère (1,072 m alt.), with its passage through beech forest and its arrival at the panorama of the hidden Pommerol valley. The north-facing slope takes you through a wild landscape where limestone and erosion have combined so well that "fairy chimneys" still stand out in long silhouettes. Your route then heads east again, past the 16th-century Château de La Charce and the no less famous limestone strata of the Serre de l'Âne (a world-renowned geological site). Ideal season: September.

Admission fee : Free access.

Opening : All year round daily.