Gorges of the Tarn & Dourbie

(near Millau) Tarn website
The Gorges of the Tarn are considered to be the Grand Canyon of France because of their spectacular scenery. While in the area, visit thesubterranean caves of Aven Armand, the largest in France and considered to be among the most spectacular in Europe.
Visit Montpellier-le-Vieux, noted for the strange rock formations. It was considered holy ground for many centuries. 
We can recommend the Chateau d'Ayres near Meyreuis, and the Chateau de le Caze near Ste. Enemie, both exceptional hotels with fine dining.