Some pictures of the surface between Carcassonne and Béziers

Just to give you an idea of why AF3V doesn't consider some of the Canal du Midi between Carcassonne and Béziers a greenway. From top to bottom these are: towpath near le Somail; road at Ventenac; towpath changes to road at Ventenac; towpath between Colombiers and Béziers. All taken March/April 2011. No worse than the untarmacked sections of the Erewash Canal towpath but I accept that it is not as good as the Mickleover Greenway! How would the small wheels of the folders fare over this sort of terrain?