(S) When leaving Parc de Sceaux station (exit at the rear of the train when coming from Paris and at the front of the train when coming from the suburbs), turn left onto Avenue de la Duchesse du Maine. Follow theGRP® du Sud Parisien, marked in red and yellow. At the end of the avenue, turn left onto Avenue Arouet. At the roundabout, continue straight ahead.
(1) Enter Parc de Sceaux. Take the second path on the right (Allée du Tir, still followingthe GRP®). Pass in front of the statue of servitude. At the end of the path, you will come to a circular esplanade (Mascarons statue).
Take the path on the right and immediately afterwards, go down the steps on the left which lead to a small path below (Allée Colbert). Follow this path to the right, leaving the Petit Bassin on your left. After first turning left then right, you will come to a large esplanade lined with trimmed yew trees in front of the Château du Parc de Sceaux.
Cross the esplanade, leaving the château on your right. Then turn left into the lane that runs alongside the Plaine des Quatre Statues. At the end of the lane, leave the park via the Porte du Pont de Chartes. Then cross the D67 and go straight up the embankment of the green corridor where theGR®655passes.
(2) Leave theGR®655on your right and take the smallGRP® path that descends towards Rue Auguste Pouillé. Turn right into this street and take the path that starts immediately on the left (red and yellow markings). At the first intersection, turn right, then continue on the same path. You will come out onto the Sentier de Torques, which you should follow to the left. At the end, turn right onto Rue Jean Longuet, then take the first left onto Rue Marc Sangnier.
(3) Cross the D63 (Avenue Roger Salengro) and continue opposite Rue Eugène Sinet. At the end of the footpath, turn left into the Jardin de l'Aigle Blanc (opposite the entrance to the Ile Verte). Turn left immediately and cross the park via Ruelle de la Fontaine d'Aulnay. At the park exit, turn left onto Rue de Chateaubriand.
(4) Turn right into Parc de la Vallée aux Loups (Chateaubriand's house is nearby). Cross the park via Chemin des Martyrs de la Résistance.
(5) At the crossroads, take the third path up to the right in a hairpin bend (red and yellow markings). After the hairpin bend, go straight up to reach the park exit directly or take the marked path on the left that winds between the trees and leads to the same exit via the Porte de la Micheronne (option marked on the map).
N.B. If the gate is closed, which sometimes happens, go back down the path and take the Chemin des Martyrs de la Résistance (yellow markings) on the right until you reach the Porte de l'Orme Mort. Reach the Porte de la Micheronne by going up the Voie de l'Orme Mort.
(6) Follow the Avenue du Bois on the right. At the crossroads (Maison du Moulin Fidel about a hundred metres on the left), first turn left then right to follow Rue du Capitaine Georges Facq. Turn into the first street on the left, Avenue Gabriel Péri.
After about 100 metres, take the passage on the right that leads between the buildings. This is where your walk through the garden cities of Plessis-Robinson begins. Turn left onto Rue Fernand Fourcade. Cross this street and continue straight ahead on the path between the buildings and allotments. At the end of the path, turn right and you will come to Rue Victor Vernadat. Then turn left and go around the roundabout on the left.
(7) After crossing Avenue Charles de Gaulle, take the path opposite (Square de la Liberté), following the red and yellow markings. Turn left almost immediately and take the footbridge over the river to walk between the buildings of the new garden city, following the river (red and yellow markings).
Continue straight ahead along Rue du Loup Pendu. After Allée de Lilas, turn left onto the footpath that runs alongside the river. Turn right onto Chemin des Nénuphars. Cross Rue Raye Tortue and continue straight ahead along Chemin de l'Eau Vive. Cross Rue Saint-Fiacre and turn right.
Cross Rue du Loup Pendu and follow Chemin Léonard de Vinci opposite. Turn left onto Rue du Carreau, then right onto Avenue de la Libération. Continue straight ahead until you reach Avenue Paul Langevin. Cross the roundabout and follow the path on the right for a few metres, which leads to Parc des Sports (red and yellow markings).
(8) Enter the Parc des Sports on the left. Cross the park following the red and yellow markings until you reach Rue Blaise Pascal, then continue straight ahead on this street. Then follow Avenue Galilée on the right until you reach the roundabout. Then turn left onto Rue de Versailles. Cross Avenue du Général de Gaulle (D906) and then the tram tracks (Mail de la Plaine station). Follow the tracks to the right for about 75 metres (Rue de Touraine).
(9) Take theGRP® path on the left (Allée de Corse, then Rue de Picardie). Cross Rue de la Porte de Trivaux at the traffic lights, then turn right and walk along the majestic entrance to Clamart Cemetery (remarkable trees and sculptures).
After the cemetery entrance, take theGRP® trail, which starts at the end of the car park on the left. Walk along the cemetery, following the path on the left until you reach a large perpendicular avenue (Chemin du Parc). Turn left onto this avenue and immediately take the smallGRP® path on the left, which runs along the back of the cemetery. Continue along this path until you reach the next junction with a large avenue (Le Tapis Vert; beautiful view of the forest with the Meudon observatory in the distance).
Follow the large avenue to the right. After about 300 metres, cross it and continue through the undergrowth on the path that descends to the left (follow theGRP®). Continue with theGRP®, which branches off to the left in a hairpin bend and then again to the right until you reach the Étang de Trivaux.
(10) Go around the pond on the left. At the corner, turn right and continue along the pond on Route de l'Étang de Trivaux. At the end of the pond, turn left and walk past a restaurant. Then turn left to walk along the Étang de Chalais.
(11) At the crossroads (on the right, an old hangar where a blimp was built), take the GRP® trail opposite. At the corner of a high surrounding wall (cemetery), follow theGRP® trail to the left to reach the Étang de Meudon.
Walk along the left-hand side of the lake until you reach the end, passing a restaurant. At the end, turn left onto Route de Villebon in Villacoublay. At the end, cross the Carrefour de l'Étang de Villebon (leaving the lake on your right) and take theGRP® trail (red and yellow markings) opposite, which climbs south-east. At the T-junction, turn right.
(12) Follow the path on the left that runs parallel to Rue Henri Etlin. After a hairpin bend to the right, you will come back to this street. Turn left and walk alongside the technical college until you reach the N118.
(13) Take the footbridge over the N118. At the bottom, follow the path on the right and then turn left. Continue straight on theGRP® until you reach the Fonds de la Chapelle crossroads. Then take the third path on the right, the Route du Cordon du Haut.
(14) Pass in front of the Chêne des Missions and its dolmens. Continue to the Carrefour de la Source Ferrugineuse, ignoring the paths on either side.
(15) At the crossroads, turn right and follow theGR® (red and white markings). After about 150m, leave the Route du Cordon du Haut on the left and follow the GR®. At the crossroads, turn right towards the radio tower.
(16) Go around the tower on the left. Cross Rue du Pavé de Meudon and continue on the second path (GR®) which runs parallel to Route des Bois Blancs. After about 200 metres, take the path that branches off to the left (be careful, as the red and white markings are not very visible at this point). At the end, turn sharply left (south-west) and descend. Take the first path that descends to the right. Please note that this last part of the path can be flooded and very muddy when it rains.
Follow theGR® to the edge of Chaville and the Pavé des Gardes road (D181).
From there, you can reach the Chaville Rive Droite RER C station.
(17) When you reach the D181 road, take the path that goes back up into the forest (red and yellow markings). Pass in front of the Doisu forest house. At the top of the climb, follow the marked path to the right (go through the gate).
When you reach a fork in the path (clearing), take the small path opposite (unmarked). Near the corner of the cemetery wall, turn right onto the second path (unmarked) to reach the Mare Adam gate. Leave the forest and continue straight on Rue de la Mare Adam. At the end, turn left onto Rue de Jouy to reach the Chaville-Vélizy RER C station (E).