In September we are off via Dunkerque to Nante to visit family. We are looking for interesting places to stop at, visit for one or two nights on the way down and back again. We thought of the route via Rouen and Le Mans. Does anyone know of good sites, great places to visit (for a pair of 50 year old anoraks) or alternative routes that might be useful. Info about tolls would be helpful too. Thanks.