Departure from Changis-sur-Marne station,
- Transilien - Line P, on the section between Paris-Est and Château-Thierry via Meaux.
(S/E) Go under the tracks via the underpass, follow Rue de la Gare, pass the old café, then turn right onto Rue du Moncey, turn left into Rue du Vieux Saule, turn right onto the right bank of the Marne, climb the stairs and cross the Marne via the bridge.
(1) Turn left, walk down alongside the Marne and follow the path on the right for about 4 km, ignoring the turn-offs on the right; go under the A4 motorway bridge, continue to Ussy-sur-Marne, which can be admired from the opposite bank.
(2) About a hundred metres before a road bridge, just after the summer leisure grounds, turn right at a 90° angle onto a farm track. Then turn left onto this track, running alongside the D603. Cross the D21p (Rue d’Ussy) then first turn left then right to the pedestrian crossing.
(3) Cross the D603 (Rue de Metz) and head up Rue Cassine opposite. Join Rue Gaulde and follow it to the right (south-west). Continue along Chemin de la Grange au Boi, which is tarmac at the start and then grassy. Climb to the edge of a wood, ignoring the side paths.
(4) Continue south-west along the edge of the woods, still climbing. Reach the Dhuys (underground aqueduct).
Red and white markings
(5) Turn right onto a hard-packed track and follow it to the junction with a tarmac road (Route de la Choquette).
(6) Turn right and head downhill to the hamlet of Montretout. At the T-junction, turn left onto Rue de Sibut. Leave the hamlet and continue along the road that crosses the A4 motorway.
(7) Take the path on the right along the Dhuys aqueduct embankment. Cross two small roads. After a series of left and right bends, ignore a path leading uphill to the left and you will soon reach another junction.
End of red and white markings
(8) Then take the path that descends steeply to the right. Cross a road and go down a flight of steps. At the bottom, turn left onto a path and you will immediately come out onto a road.
(9) Turn right (Rue Paul Tripier) then take the first street on the left.
(10) At the end, follow Rue Alfred de Musset to the left. Turn right into Rue du Général de Gaulle and continue all the way to the traffic lights on Rue Pasteur.
(11) Cross Rue Pasteur (D603) at the pedestrian crossing and continue straight ahead. At the first junction, continue straight on then turn right to reach the left bank of the Marne.
(12) Go under the bridge, turn immediately right, go back up onto the road (red/white markings), then turn right to cross the bridge and go down the steps, go up Rue du Vieux Saule and turn right into Rue du Moncey. Turn left into Rue de la Gare and rejoin the (S/E).