Roll out of Coulon and follow the La Sèvre Niortaise river on a 76.8 km loop that soon leads into the Parc naturel régional du Marais poitevin. Carry on past La Guirande and Le Mignon, both rivers, before the route turns you back toward Coulon. With 315 m of climbing, it stays gentle, and the surface runs 97% paved with 3% unpaved.
