Circuit N ° 6 – Duration: 2h15 Discover the Armance Valley from the hilltop town of Ervy le Châtel. From the forecourt of the Church of St Pierre-es-Liens, observe the plain before walking through it via its many agricultural paths and winding forest tracks. During your hike, discover the richness of the many hamlets crossed, such as the Moulin du Breuil, the Etang de Marolles sous Lignières or the Domaine du Bois Gérard. Keep some strength for the last ascent before returning to your starting point. The mountain bike base is open all year round with the exception of the general hunting season, from mid September to early March (period defined each year by prefectural decree visible at the town hall).