Turn right in the Rue de l'Esperance and continue in the Rue Auguste Lancon. on the crossroad , beautiful house. Enter on right in the Cité Florale (old place of a lake in the 19th century) : Turn right in the Rue des Orchidées , then in the Rue des Glycines, then on right in the Rue Brillât savarin , then Rue des Iris then Rue des Volubilis. Get out by the Rue Auguste Lancon and take it on left. Turn right in the Rue Liard which is along the Petite Ceinture.

Enter in the Parc Montsouris (Built by Napoléon III in 1867) by the stairs. Continue in the way which arrives the alley with the Mire du sud, then turn right before the station of the RER B. See the Petite Ceinture. Turn left to rejoin the RER.