This natural arch that spans the Ardèche River is without a doubt the most iconic site in the region. This is a place of outstanding beauty: the river carved into the rock a massive arch of gigantic proportions (54 meter high and 59 meter wide). It's the only natural arch in France that spans a river in use. The Pont d’Arc, registered as a Grand Site of France, is the entry way to the Ardèche Gorges.