Explore the heights of Saint-Loup-Terrier via trail #21. Cross its woods and follow its streams, notably the Saint-Lambert stream that feeds the village's washhouse. At the starting sign near the washhouse, head straight on the path for 3.5km, which will take you alongside the Saint-Lambert stream. Climb the slope and then follow along the "Ménimont wood." At the intersection near the village of Mazerny, turn right, then 500m further, at the crossroads "Le Priolet," continue straight on this downward path that will lead you
to the "Saint-Lambert" stream (marker 7/13). Cross this watercourse by fording and ascend the slope. After traveling 1.4km, turn right (marker 9/13) to enter the wood, then turn right again 200m further to catch up with the road. You will then see on your left the "Géromont farm." Continue along the woods and then enter the Saint-Loup-Terrier wood. Proceed straight on the remaining 2km that will take you back down towards the village and return to your starting point.