-Walks and guided tours As part of the reopening of the Bièvre, a living heritage. The conservation of the heritage offers 4 visits of 3h, on the river of bièvre, its history, and its accompanying monuments, from the old mill of the rock, to the bridge of the avenue P.Doumer, the chaplaincy (House of the Marquis of Sade), the fountain of the village and its church, the nymphea, the former Town Hall, the Arcueil Castle (Guard House), the acqueduc, the Fief des Arcs and Anjou (the Provigny Castle and the Faisanderie.