Château-Thierry is accessible by train from Paris via the Gare de l'Est station or by the A4 motorway.
(S) Take Avenue Wilson opposite the station, following the red and white markings. At the crossroads with Avenue de la République, turn right then left into Rue des Bains. Turn right onto Quai Dupuy Delizy, then take the footbridge to cross the left branch of the Marne, go straight ahead and follow the right branch of the Marne. At the bridge, cross the Marne, then cross the roundabout and continue (north) along Rue du Général de Gaulle.
(1) At Place de la Mairie, turn right and walk up Rue du Château (yellow and blue markings), admiring the old houses and the Hôtel Dieu as you go.
(2) At No. 33, turn left onto the Chemin de Ronde. At the end of the Chemin de Ronde, turn left onto Rue de La Fontaine.
(3) The museum is on your right. At the end of the street, turn right onto Rue Saint-Crépin. The Church of St Crépin was rebuilt in the 15th century. Continue along Rue Saint-Martin.
(4) You will arrive at a square with a golden statue of a lion. Go around it on the right, then turn right at the foot of a lamppost (blue and yellow markings) into the Sente du Dessous le Faubourg. At the end, turn left, cross Avenue de Paris and continue straight ahead into Rue de la Mare Aubry.
Follow the blue and yellow markings and take the second street on the right, Rue du Bas Courteau. After the bridge, turn right then left at the fountain. After about 50 metres, turn left onto Chemin du Réservoir then quickly right onto Chemin des Henry. Follow the white and red markings ofthe GR®11and climb into the woods.
(5) At the edge of the woods, in front of the American memorial, turn left (white and red markings). Turn left into the woods. Turn left again, then right (south-south-west) and walk along the vineyards, enjoying the view of the town and the Marne Valley.
(6) At the crossroads of four paths, take the left-hand path downhill. At a T-junction, turn right, then left at the next junction. Pass a street coming from the right and continue to the next crossroads.
(7) Turn right and then right again before the stream. After the small bridge, turn left, then left again into Rue du Jeu d'Arc.
(8) At the abbey square, at the wash house, turn right into Rue de l'Abbaye. At the next stop sign, take Rue de l'Observatoire opposite (white and redGR®11Amarkings). At the foot of the vineyards, turn right uphill (markings on the bench) and, halfway up the slope, take the path between the vineyards on the left.
(9) In the woods, at the fork, turn right and, at the end, turn left down a concrete path (white and red markings). Take the second path on the right through the vineyards. Follow the white and red markings. After a small copse, at the crossroads in the vineyards, go straight ahead.
(10) 200 metres later, turn left towards the village: the markings are not very visible on the left on a small vineyard post. Turn right and walk alongside the houses. On the Gramont road, turn left (white and red markings). Cross the D969 (take care) and take Rue du Bac opposite.
(11) In front of the Marne, turn right and walk along the river for about 2km, following theGRP® du Tour de l'Omois (red and yellow markings).
(12) Leave the Marne to turn right and cross the D969, which you must take to the right. About 150m to the left, opposite a medium-voltage EDF pole, take a small path between two properties. Follow the white and red markings ofthe GR®14and 17A.
(13) At the edge of the woods, continue straight ahead through the vineyards, then turn left onto the road (GR®14). When you reach Romeny, take the first right onto Rue des Traversaines, cross Rue Pierreuse and take Chemin des Maintenons opposite. At the end of the path, turn right uphill, then take the first path on the left through the vineyards, before the electricity pole (white and red markings). Ignore the path on the left.
At the crossroads, take the path on the left downhill (white and redGR®14markings on a post). Follow the white and red markings, take the stairs and cross the D969 with caution. Head towards the Marne via Rue du Bac. Turn right, go under the bridge, climb up and then cross the Marne. Turn left to find Nogent-l'Artaud-Charly station (E).
