premise: If you have plenty of time at your disposal, consider renting a sail-it-yourself canal boat or cabin cruiser and drifting slowly along the Canal de Bourgogne from Dijon, or the tributaries of the Loire, or the Canal du Midi from Toulouse down to the sea at Syte.
hypothesis: It does not cost very much to rent the sail-it-yourself canal boats and they have special rates during the off season.