Gorges du Tarn  

"The most famous and most impressive of these canyons, the Gorges du Tarn, separating the Causse Sauveterre from the Causse Mejean, provides more than 30 miles of gorges, stretching from Millau, the headquarters for excursions into this strange country, all the way to Sainte-Enimie. The entire course of the canyon is a wilderness filled with sudden views of the breath-taking silhouettes of the red and yellow cliffs, the rocky chaos of land-slides that have tumbled into the river, routing the waters swirling around them. Though a highway winds its way the length of the canyon, one should also, if possible, go down the Tarn by boat. (During the season there is a regular service between La Malene and the Cirque des Baumes.) The complete descent does not present any major difficulties and can be undertaken by any beginner. There is only one section so impassable as to force the adventurer to make a portage."--France 1953 (Fodor)