In reply to rob123:
It's several years since I ve been to the Ardeche, but I think you'll be better off staying near the crags on the Chassezac, at somewhere like Camping la Vignasse, and travelling over to the Ardeche for the canoe descent. It's wonderful to get out of your tent and wade across the river to climb without having to drive anywhere. Expect polish, sunshine and a great all round holiday.