Located on the left bank of the Gardon, Collias owes its origin to the Greeks. Successive occupants have left traces: the Palaeolithic occupation of caves, Roman and early Christian and pagan traces in the classified site of the Hermitage.
The almost virgin landscape of the Gardon gorges and vast plateaus that dominate are a paradise for hikers, horseback or mountain bike, and all river activities are practiced.
Collias was a major center of silk production until the 19th century. It is also the birthplace of the olive "Picholine".
At the foot of the Gorges du Gardon, this village is synonymous with relaxation and offers a framework of greenery and freshness, a remarkable range of activities: canoeing, swimming, climbing, horse riding, fishing, hiking GR6 and GR63 and many PR , tennis, quad biking, via ferrata, canyoning, caving ...