Arles with 43km. One often evokes Arles for the richness of his ancient inheritance (Roman monuments) and novel, his monuments registered with the world heritage of UNESCO in 1981 of which the Roman Amphitheater (arenas), the ancient Theater, Cryptoportiques, the Roman Thermal baths of Constantin, the vestiges of the Roman circus, the cloister Saint-Trophime, the gate of Saint-Trophime and Alyscamps, which are the departure of the way of Arles, one of the three ways leading to St Jacques de Compostelle.

Throats of the Screw:  The Screw is a small tributary river in Herault. This waterway, length of 30km, dug its bed in the middle of impressive plates limestones: causses.

The rainwater infiltrates through this particularly permeable rock, digging a whole network of underground galleries. The Screw is the fruit of this slow infiltration. It forms majestic meanders bordered by a luxuriant vegetation.

The circus of Navacelles, the old bed of the Screw borrowed the meander now dry. Opposite immense causse Larzac takes shape.