This loop sets off from La Bastide-sur-l'Hers and rolls out past the river Le Grand Hers, then follows the Le Touyre and the Bras du Douctouyre on its way to the Douctouyre itself. Along the way the Château de Léran gives the route its castle moment before the road turns for home. It's 72.9 km of paved riding with 964 m of climbing, and the whole thing starts and finishes in the same village.
