Start from Saint-Cloud station (Transilien lines L and U).
(S) After the ticket barriers, go down the stairs towards "Rue Dailly / Hôpital". At the exit of the underpass, cross at the traffic lights and walk down Avenue Charles Lauer, between the two hospital buildings.
Red and white markings (GR®1)
(1) Turn right onto Place de Silly. At the Fork in the road, keep right onto Rue des Écoles, then continue straight on until you reach the entrance to Parc de Saint-Cloud.
(2) Go up the concrete path on the right (ignore the markings at this point). At the top, turn right behind the wooden fence, then immediately left to enter the Jardin du Trocadéro. At the Fork in the road, keep left. Go straight on until you reach a rotunda facing a pond. Then turn right, then near the boundary wall, turn left at the Fork in the road (ignore the markings on the ground at this point). Then turn right to leave the garden. Continue right along a wide path until you reach a car park.
(3) Turn left, then left again along the tarmac path, until you reach the Pavillon des 24 Jets. Turn right, passing through the gates at the foot of a lion sculpture. Cross the esplanade, then go down the steps on the left. Leave the Bassin des Trois Bouillons on your left. After a few steps, take the second path on the right to reach a large grassy square. Go round it and continue straight ahead to a gate.
(4) Take the path that climbs steeply to the right along the grassy slope of the Fer à Cheval. Continue straight on to the Rond de la Balustrade and the viewpoint overlooking the Seine and Paris.
(5) Turn right and leave the Allée Couverte car park on your left. Then turn left into the Allée de la Lanterne. Take the first path on the left, which enters the woods, then immediately right at the Fork in the road. Follow the GR® until you emerge from the woodland, ignoring all the cross-paths. You’ll come out onto a wide path; follow it to the right. This will take you to a large crossroads, the Rond de Chasse.
(6) Head right towards the Stade Français and the Allée des Marnes and cross the D985. At the car park, take the third path on the left. At the first junction, go straight on. At the next junction, take the first path on the left. Climb gently and go straight on at each of the next three junctions.
(7) At the top of the hill, turn right (a short, very steep climb at the foot of a tree). Leave the clearing on your left and continue along the path opposite. At the next junctions, carry straight on.
(8) Leave the Parc de Saint-Cloud via the Porte Blanche and head down the street of the same name. Cross the Place de la Mairie, leaving the town hall on your left, and continue along Rue G. et X. Schlumberger. At the traffic lights, cross the D407 and follow it to the right towards Garches, staying on a shared path for pedestrians and cyclists.
(9) At a right-hand bend, take the first path on the left, running alongside a stone wall. Continue uphill (bridle path) and soon ignore a turn-off on the right. Then turn right onto the signposted path. At a fork in the road, keep left. At the junction, go straight on, and at the fork that appears shortly afterwards, keep right.
Yellow markings (PR®)
(10) At the Carrefour des Ormes, take the Route Royale to the right. Continue straight on. As you approach the A13 motorway, turn left. At a junction (marker 161), turn sharply right and descend to a crossroads (fire hydrant).
(11) Then take the first path on the left and go through the pedestrian tunnel under the motorway. On the other side, turn left and walk alongside the motorway. Take the first path on the right, immediately followed by a flight of steps, to reach Avenue du Bois. Follow this avenue to the left, then turn right into Avenue des Vallées. Climb a flight of steps to reach Avenue des Terrasses.
Red and white markings (GR®) + yellow (PR®)
(12) Turn right. Cross Boulevard de Jardy (D182) at the pedestrian crossing on the right. On the other side, first turn left then right to go down a flight of steps. Continue along Rue Allouard and go straight on to the square in front of Vaucresson station.
(13) Walk along the pavement in front of the station, then turn right into the pedestrian tunnel that goes under Boulevard de la République (D907). Exit on the right, then turn immediately left into Rue Émile Testu.
Red and white markings (GR®)
At the next junction, turn left into Rue des Fonds Huguenots. After a right-hand bend, you’ll reach a crossroads.
Red and white markings (GR®) + red and yellow markings (GRP®)
(14) Turn left onto Sente du Bois des Dames. At the end, turn left to reach the traffic lights. Then turn right to cross the D173 (Avenue des Puits) safely. On the other side, head right before taking the first path on the left. Pass a railway line, visible only on the left (tunnel exit). Turn immediately left then right to reach the esplanade opposite the Butard pavilion (picnic area available).
(15) Head down the first path on the left after the pavilion. Continue straight ahead (north-west).
(16) At a junction, you can reach La-Celle-Saint-Cloud station via the path that descends to the left and leads to the station car park. Otherwise, continue straight on with the GR®. At the Fork in the road shortly afterwards, turn left then continue straight on.
(17) At the crossroads, continue straight ahead on the GR®. Ignore the first path coming from the right and, at the next junction, turn left. Cross Avenue Charles de Gaulle (D128) via the pedestrian crossing on the left. Walk down Avenue Gustave Mesureur until you reach a junction with traffic lights.
(18) Cross the D321 (Avenue Jean Moulin) at the pedestrian crossing on the right. On the other side, follow the avenue to the left and shortly afterwards turn right into the Sentier des Brangères, at the corner of a restaurant. You will come out onto Avenue de l’Abreuvoir and follow it as it continues. At the end, first turn left then right to go under the railway line. Continue uphill opposite along Grande Rue. At the T-junction, turn right, still on Grande Rue. Turn left onto this road, go uphill and ignore two other streets on the right.
Off the marked route
(19) Turn right onto Mail du Bois Brûlé, then take the first path on the left, the Chemin des Quatre Routes.
Red and yellow markings (GRP®)
Rejoin the GRP®, continue straight ahead through the undergrowth (north-west) and ignore the side paths.
(20) At a junction (access to a road on the right), go straight on and, at the first Fork in the road, turn left. At the following junctions, continue straight on with the GRP® until you reach the tarmac road, Chemin de la Chasse du Roi. Go straight on until you reach Rue du Maréchal Joffre.
No signposting
(21) Walk up the street to the left.
Red and white markings (GR®)
Cross Chemin des Gressets on the left-hand side and continue straight on until you reach Route de Versailles (N186).
(22) Cross the four-lane road in two stages, then follow it to the left along a wall.
(23) Pass through the Grille des Deux Portes and enter the Parc de Marly via a small tarmac road (no traffic). At a Fork in the road, turn right.
No signposting
Let the GR® head off to the right onto a path and stay on the road. At the junction, turn right and reach a beautiful viewpoint at the top of the Tapis Vert (a vast lawn).
(24) Head down the path on the right, keeping the lawn on your left. Go round the pond (Rondeau du Grand Jet) on the right until you reach the junction with the Route de la Grille Royale (site of the old castle on the left / climb up towards the gate on the right).
(25) Continue straight ahead, then take the first path on the left, which runs some distance from the Bassin du Grand Miroir. At the next junction, turn left, then immediately right. Go round the grassy “roundabout” on the right, taking the second exit. Turn left to walk along the outer wall, then left again along the terrace, above the drinking trough basin. Pass the Marly horse statues.
(26) Walk up the other side along the boundary wall to the Porte du Roi. Turn left, then head up the Allée des Pavillons du Couchant on the right, keeping the Bassin du Grand Miroir on your left. Leave the car park on your right and continue along the same path to the junction with the Route de la Grille Royale (opposite the junction described at the start of this paragraph).
Red and yellow markings (GRP®)
(27) Pass the road coming from the right, then head diagonally towards the retaining walls, to the left of the row of cone-shaped box trees, at the foot of the hill. Climb the steps at the foot of the wall. Cross the Route de Bacchus, then climb up to the plateau via a large flight of steps followed by a grassy slope.
Red and white markings (GR®)
At a junction, rejoin the GR®1 and continue straight on. Reach an enclosure wall and turn left to reach the Grille du Stade.
(28) Leave the park and continue straight ahead on the tarmac road. At the end, cross Route de Saint-Cyr (D7) at the pedestrian crossing and follow it to the left along the F.H. de Virieux stadium. Take the first path on the right, which gradually moves away from the road before descending to the right between plots 138 and 140.
Unmarked
(29) At a fork in the road, continue straight ahead (ignore the GR® which branches off to the left). Reach a junction at plot 135 and rejoin the GRP®.
Red and yellow markings (GRP®)
(30) Follow the GRP® to the left. After a wide bend, the path widens and then reaches a junction.
No markings
(31) Turn right onto Route des Dames. Cross a perpendicular path and enterÉtang-la-Ville. Follow a path and cross the Allée du Val de Croui and the Allée des Sources in turn. Walk along the left-hand side of the Val des Sources sports ground and come out onto a street (Chemin de l’Auberderie; on the right, access to L’Étang-la-Ville station).
(32) Follow the street to the left and pass under the railway line through a tunnel. Continue straight ahead and cross Chemin des Plantes on the right-hand side. Continue straight ahead. At the bottom, cross the Allée des Bruyères on the left and immediately take the next left onto the Chemin de la Butte Durand. At the end, first turn left then right to cross the Route de Noisy and take the Rue des Guérines.
(33) Shortly afterwards, turn left onto Sente des Guérines. At the top of a flight of steps, turn left onto Chemin des Bornes. Continue straight on until you reach a junction with Chemin des Closeaux.
(34) Follow this path as it continues. You will come out onto Chemin Pavé; follow it to the left. Shortly afterwards, turn right and walk alongside the railway line on your left.
(35) At the T-junction, turn left onto Chemin du Chevaudeau, still following the railway line. At the next junction, turn left and go under the railway line.
Red and yellow markings (GRP®)
(36) On the other side, turn right. At the next junction, turn right again. You’ll come out onto a small road; follow it downhill as it continues. You’ll soon reachSaint-Nom-la-Bretèche - Forêt de Marly station (Transilien line L on the right, Tram line 13 on the left) (E).