I was working in Southern France last May/June..the water drops off fast! late June I was happy to get out. Early May the river was kickin. The Ardeche is close to the Rhone, just just south then east on the other side of the Rhone.
Ok, I was gonna show some pics of the waves in MAy of last year, but I can’t, so here. http://photos.yahoo.com/gordbunston and check out France.