Parking: Park on Rue du Général Roux in Fontaine-le-Port, between the town hall and the railway underpass.
(S/E) Go to the front of the town hall, still on Rue du Général Roux, and take Rue Victor Hugo to reach the church (*). Turn left in front of the church onto Sentier des Rossignols, which passes at the foot of the stairs. At the end, in front of the well, follow Rue du Général Roux to the right and, just before the bridge over the Ru du Châtelet, turn left onto the path that runs alongside the stream. Go behind the town hall (*), cross the stream on Rue de la Vieille Montagne, pass above the wash house, and continue around the bend to the right. At the end of the bend, turn left and go under the railway line, then right to reach the bridge over the Seine.
(1) Turn right onto Rue de Massoury. Cross the railway line again, then follow theGR®2uphill. At the right-hand bend, follow theGR®2to the left, Rue des Grillons, after taking a look at the wash house if you wish. At the end of the street, at the top, follow theGR® to the left, Rue Curie, until the next crossroads.
(2) Follow theGR® 2, which branches off to the left onto Rue des Plantes (not very visible), then to the right. Follow it almost straight ahead onto Rue du Champ Fleuri. Continue until theGR® turns left just before the edge of the woods.
(3) Follow theGR® to the left down a slope protected by logs, then turn right, above the railway line, with the tracks on your left. After about 800 m, you will come to a slope on the left.
(4) Leave theGR® trail, which remains stuck along the fence, and descend to the left through the passage under the railway line until you reach the D39 road that runs alongside the Seine. Turn right along the river: there are pavements. When you reach theGR® coming from the right via Rue de la Chevalerie, pass to the left on the other side of the hedge. See the Château de Rouillon and its outbuildings on your right, and continue along the Seine to the dam.
(5) Follow the GR® trail up the spiral ramp to reach the footbridge. Cross the Seine and arrive on the other side via the winding ramp designed for wheelchairs. At the bottom, take the stairs on the left (ignore the first ones on the right). In line with the stairs, follow Rue de l'Île Saint-Pierre, which turns right, and join the junction with Rue de Tournezy.
(6) Turn left onto Rue de Tournezy (*) and enter the leisure centre. Pass the two barriers for cars and arrive at the beach. Cross the footbridge and continue straight ahead parallel to the Seine. Pass the exit barrier of the leisure centre and continue to the next crossroads with forest paths on the right.
(7) On your right, you will see Route Sans Nom (yes, that's its name) and Route de Barbeau. Take the latter at a 45° angle to the right. At thefirst crossroads, Tournezy, turn 45° to the left to continue parallel to the tarmac road. At the next crossroads (Du Bineur), continue straight ahead until the next crossroads.
(8) Then turn 45° left onto Route Napoléon. Continue until you reach the paved road and follow it to the right until the right-hand bend.
(9) When the road turns right, continue straight ahead behind the barrier, following a wire fence. After seeing the Château de l'Orée du Bois (*) on your left, turn left onto the path that leads to the castle entrance. Follow it to the Seine and turn right to pass under the bridge. On the other side, turn right to find the stairs that lead up to the bridge and cross the Seine.
(1) At the crossroads at the end of the bridge, turn right and, after the steel guardrail, join the lawn on the right-hand side of the Seine. Move closer to the road to cross the Ru du Châtelet, then return to the lawn for about 50 metres. Look for the road on the left that passes under the railway line and take it. On the other side of the tunnel, you will find the car park where you started (S/E).