To the south-west of Beauvais, discover the commune of Saint-Martin-le-N?ud and stop off in the village (Romanesque church, former Templar quarries, Roman road).
Variant (9 km instead of 14.5 km): After the T-junction, turn right. Follow the track for 100 m, then fork left towards the village of Saint-Martin-le-Noeud. When you reach the main road, turn right (be careful!) to rejoin the course.