Country:
District:
Starting point and access: Achères-Grand Cormier station.
- RER - Line A, on the section between Paris and Poissy.
Take the only exit, at the front of the train when coming from Paris.
Yellow markings
(S) When leaving the station, turn left and walk along the right-hand side of the N184 (four-lane road). Atthe first intersection, turn diagonally left onto a path that passes at the foot of an information sign and enters the forest.
No markings
(1) At the crossroads (stone cross), take thesecond left, a wide gravel path closed to motor vehicles. Walk along the fence on the left-hand side. At the next crossroads, at the Croix Dauphine (no cross, just a sign), take thesecond path on the right (horseshoe). At the next crossroads (plot no. 122), go straight ahead and you will soon reach a junction.
Red and yellow markings
(2) Then turn right onto a small sandy path. At the next crossroads, go straight ahead (ignore the arrow pointing left towards Maisons-Laffitte station) and at the next one, continue straight ahead again.
Red and yellow + yellow markings
At the next crossroads, turn left. Cross a wide sandy path and then a path running parallel to it. After about 20 metres, look for a path starting on the right.
Red and yellow markings
(3) Turn right onto the path. Wind your way through the undergrowth and, at a crossroads, continue straight ahead. At a T-junction, turn left and you will immediately reach another crossroads. Turn right. At the end of the path, cross the busy D308 road carefully, using the central reservation. On the other side, there are two paths: take the one that veers off to the right (south-west).
(4) At the crossroads, take thesecond path on the left (south-east). At a crossroads, continue straight ahead and at the crossroads, take thefirst path on the right, the Route de Bourbon. After about 400 m and just before a fork, look for a path starting on the left.
(5) Turn left onto this path, wind your way through the undergrowth and go straight ahead at two successive crossroads. At the fork, take the path on the right, which is more clearly marked. At the next crossroads, go straight ahead and continue to wind your way along the marked path.
(6) Cross a path and then immediately a wider path, and continue on the marked path opposite. At the T-junction, turn left.
No markings
(7) At Étoile de Lamarck, take thesecond path on the right (south-west). At the next crossroads (oratory), follow thesecond path on the left to the south, Route de Notre-Dame de Bon Secours.
Red and yellow markings
At Étoile d'Actéon, take thesecond path on the right and ignore a path branching off to the left. At the next intersection (salamander pictogram), turn right and you will soon reach a crossroads (signpost).
(8) Go straight ahead for a round trip to Mare aux Canes. Cross a stream on a footbridge and arrive at the pond (a good place to stop).
(9) Retrace your steps back to the signpost.
No markings
(8) On your return, follow a wide path to the right, immediately cross a tarmac road and continue straight ahead along Route Royale. At the crossroads (plot no. 198), turn left and at the next crossroads, continue straight ahead. Carefully cross a road and then a small car park. Continue straight ahead along Route du Petit Parc and you will soon reach a crossroads with a tarmac road.
(10) Turn right and, after about 50 metres, turn right onto a path known as the "sportive" path. Follow this path, which is marked with exercise equipment, and cross three tarmac roads in succession.
(11) At thefourth junction, follow the tarmac road on the left, Route des Mares (signposted a little further on). Continue straight ahead until you reach the gate to the Terrasse de Saint-Germain-en-Laye (note the oratory on the left, off the path, just before the gate). Go through the gate and follow the very wide path to the right. Further on, turn left along the edge of the balustrade and you will reach an orientation table.
(12) Continue along the balustrade and note a vineyard below. At the end of the curve, cross a path and climb a wide staircase. Continue straight ahead on a wide gravel path, then take thesecond path on the left. At the end, turn right and walk past the Château de Saint-Germain-en-Laye. Go through the entrance gate, cross the street at the pedestrian crossing on the right and head for Saint-Germain-en-Laye station (E).
To return home:
- RER - Line A, towards Paris.
Thank you very much! 
Visorando member
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