From Auxerre to Montereau, the Yonne crosses the gentle countryside of lower Burgundy and the Ile-de-France region, and its waters bathe several beautiful cities : Auxerre with its magnificent city panorama, Joigny with its little winding streets and many wooden houses, Villeneuve-sur-Yonne created in the 12th century by the King of France, Sens with its cathedral and rich museums, Pont-sur-Yonne and Montereau where Napoleon led one of his last battles