(S) From the Tourist Office on Grande Rue Charles de Gaulle, head south to leave the town centre of Bry-sur-Marne. Go to Place Daguerre and turn right. Cross the Bry-sur-Marne bridge.
(1) At the end of the bridge, turn right onto Quai de Champagne. Follow theGR®14A(red and white markings) with the Marne on your right. Stay along the riverbank until you reach the Bry-sur-Marne footbridge. Cross the bridge to cross the Marne again.
(2) Continue left along theGR®14Aon Quai Adrien Mentienne, with the Marne on your left. Continue to the next bridge. Cross the Marne via this bridge (pedestrian path parallel to the railway line but clearly separated).
(3) Leave theGR®14Aand follow thePR® des Boucles de la Marne (yellow markings) to the right. Walk along the Marne via the André Devambez promenade. Pass under a railway bridge, then under a road bridge. You will arrive at the Pont de Neuilly-sur-Marne, which you should take to cross the Marne once again.
(4) Turn immediately left onto the left bank of the Marne,PR® (yellow markings) and cycle path. Further on, walk along the Quai de la Rive Charmante, staying as close as possible to the river and ignoring all the turnings on the right. Walk along the right-hand side of the sports grounds.
(5) Continue along Quai de la Marne (still following the yellow markings). Keep following the river and ignore all the turnings on the right. Ignore a footbridge on the left and you will arrive at Pont de Gournay.
(6) Continue straight ahead on the André Ballu promenade, still along the Marne. You will reach the Passerelle de Champs footbridge.
(7) Continue straight ahead on the "GRP® Ceinture verte d'Île-de-France" (red and yellow markings), with the Marne on your left. Go through a barrier to enter the leisure centre park and ignore a turn-off on the right.
(8) After about 400 metres, take a footbridge on the left to reach Île de Vaires. Turn right immediately and walk through the forest on Île de Vaires. Go around the Noisiel dam with a view of the mill of the former Meunier chocolate factory.
(9) After a left-hand bend, leave the paved path and take a path on the right along the Marne.
(10) Pass under the Torcy road bridge and continue along the Marne, ignoring all the paths on the left. Finally, cross lock no. 15 at Vaires-sur-Marne.
(11) Immediately turn right onto the Marne towpath. Pass under the high-voltage power lines and then under a motorway bridge. Continue between the railway line on your left and the river on your right.
(12) Pass in front of the Priory of Pomponne and continue along the Marne. Leave the Joffre Bridge on your right and continue along the riverbank.
(13) Cross the Marne via the Pont Maunoury bridge. At the end of the bridge, cross the Quai Saint-Père and continue straight ahead along Rue du Chemin de Fer. Cross three streets in succession and, at a fork, turn left into Rue des Marchés. This will take you to the Lagny-sur-Marne tourist office, which offers a range of accommodation and shops (E).