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The trail is marked along its entire length with the red and white GR® markings.
Access: the start of the hike, at the Pont d'Austerlitz bridge, is located next to the Austerlitz railway station and is therefore very easily accessible from there.
(S) From the Pont d'Austerlitz, cross the quay in several stages, leaving the Jardin des Plantes on your right and taking the Boulevard de l'Hôpital.
(1) Shortly after the hospital, turn right onto Rue Poliveau. At the traffic lights, turn right onto Rue Geoffroy Saint-Hilaire. Take the first left, Rue Censier. When the street splits with a branch turning right, take the stairs on the left and continue along the left-hand branch.
(2) You will come out onto Rue Monge (with Saint-Médard Church opposite) and follow it to the left until you reach a crossroads (with a fountain in the middle). Go around the crossroads on the right and take the second exit, Rue Claude Bernard.
(3) At the traffic lights, turn left onto Rue Pascal. Continue straight ahead and pass under Boulevard de Port-Royal. Join Boulevard Arago, cross at the traffic lights and follow it to the left for about 50 metres.
(4) Take the first right, Rue Berbier-du-Mets. Continue straight ahead, passing the former Manufacture des Gobelins on your left, then the Mobilier National on your right. Continue along Rue Croulebarbe until you reach the junction with Rue des Reculettes on your left.
(5) Enter Square René Le Gall, located below on the right. Turn left to continue in the same direction as before. At the end, exit the square and turn right onto Rue Corvisart. Then take the first left onto Rue Paul Gervais.
(6) At the end, cross Boulevard Auguste Blanqui in two stages, passing under the elevated metro viaduct. On the other side, follow the boulevard to the left for about 50 metres. Turn right onto Rue Barrault to climb the Butte aux Cailles. Take the second right, Rue Daviel, and go back down past the Petite Alsace. At the bottom, take the second left, Rue Wurtz.
(7) At the traffic lights, turn left onto Rue de Tolbiac, then right onto Rue Vergniaud. Immediately turn left onto Rue de la Colonie. Return to Rue Barrault and follow it to the right until you reach Place de Rungis.
(8) Go around the square on the left and take the second exit, Rue de la Fontaine à Mulard. At the end, rejoin Rue de la Colonie and follow it to the right until you reach Place de l'Abbé Georges Hénocque.
(9) Go around the square on the left and take the third exit, Rue Henri Pape. Take the second right, Rue du Moulin des Prés. Then turn right twice to take Rue du Docteur Leray and arrive at Place Jean Delay.
(10) Go around the square on the left and take the second exit, Rue de l'Interne Loeb. Then turn left onto Rue du Docteur Tuffier, then right onto Rue Damesme.
(11) You will come out onto Boulevard Kellermann (Parc de la Petite Ceinture below on the right) and first turn right then left to cross at the traffic lights, as well as the tram tracks. On the other side, continue along Rue du Professeur Louis Renault until you reach Rue Max Jacob and the entrance to Parc Kellermann.
(12) Enter the park and start walking around it in an anti-clockwise direction. Walk past the indoor tennis courts on your left, then a football pitch. Shortly afterwards, near a small artificial lake, turn right and leave the park.
(13) Then follow Rue de la Poterne des Peupliers to the left, passing under the Boulevard Périphérique and entering Gentilly. Follow Rue Gallieni, then turn right onto Rue Charles Frérot. You will arrive at the foot of Saint-Saturnin Church.
(14) Go around the church on the left, cross Avenue de la République and take the small path opposite that crosses a green space (the Bièvre river is below). At the exit, follow Avenue Jean Jaurès to the right. At the crossroads, turn left onto Rue Charles Frérot.
(15) After No. 83, at the corner of the Robert Doisneau House of Photography, turn left and walk under the adjoining library. You will come out onto Avenue Raspail. Turn right and follow the avenue. Take the first right onto Rue Nicolas Debray.
(16) Shortly afterwards, turn left into Jardin Pablo Picasso. Continue until you pass the public toilets (on the left), turn right, then left at the pond. Leave the garden, return to Avenue Raspail and follow it to the right.
(17) At the second set of traffic lights, first turn left then right onto Rue du Moulin de la Roche. After No. 18, turn right onto Rue Gandilhon and walk along a public garden on your left (you can see the Bièvre river here). Return to Avenue Raspail, follow it to the left and enter Arcueil. Pass under the A6a viaduct while walking alongside the Bièvre river on your left.
(18) At the corner of a sports centre, turn left onto Rue de la Division Leclerc, still following the Bièvre river. Turn left with this street and pass a cemetery. You will come out onto Avenue Paul Doumer. Follow it to the right until you reach the Arcueil town hall.
(19) Go around the town hall on the right and join the path that starts behind the building, Mail Gaston Doiselet. Walk past a secondary school on your left, then the media library on your right. You will come out onto Rue Louis Frébault. Follow this road as it continues. At the crossroads, take the second left onto Rue Marius Sidobre. Continue straight ahead and pass the post office. Then turn right onto Rue Berthollet.
(20) At the next intersection, turn left into Parc Paul Vaillant-Couturier. Cross the park diagonally, leaving the playgrounds on your right. Take the stairs leading to Place de la République. Cross Rue Émile Raspail and follow it to the right until you reach the church.
(21) Walk along the church on your left and cross Place de la République. Cross Rue Cauchy and first turn right then left to cross Place des Musiciens, leaving a nursery on your left. Then turn right to reach Rue Aspasie Jules Caron. Turn right again to Rue Émile Raspail and follow it to the left. At the foot of the aqueduct, turn left onto Rue Besson.
(22) At the end, turn right onto Avenue de la Convention (D127) and pass under the Vanne aqueduct. Continue along Avenue Cousin de Méricourt (still the D127). At the first set of traffic lights, go straight ahead. At the second set of traffic lights, turn left onto Rue Guichard (pedestrianised). Then turn right onto Place Jacques Carat. Go around the square on the left and turn right onto Avenue Louis Georgeon.
(23) Turn left onto the Rives de la Bièvre footpath. Walk along the river on your left, cross Rue Victor Schoelcher, then walk along the river on your right. Reach the Loing and Lunain aqueduct, which is less imposing than the Vanne aqueduct, turn left and walk along it on your right. Cross Avenue Dumotel and Rue du Parc de Cachan, then climb a staircase.
(24) Cross the D157, then Rue des Vignes, and go straight up to the aqueduct siphon. At the top, turn right and follow the path that runs alongside the aqueduct (underground). Continue along Boulevard de la Vanne and cross Rue des Saussaies, then Avenue Léon Blum. At the entrance to L'Haÿ-les-Roses, continue straight ahead on Voie des Saussaies (leaving the aqueduct on your left). You will come out onto Avenue Aristide Briand; turn left and follow the road. Continue along Rue Jean Jaurès and pass the entrance to Saint-Léonard Church.
(25) Then turn left onto Rue Watel, then immediately right into the Parc départemental de la Roseraie. Cross the park going straight ahead (south-west, then west-south-west). Exit the park and cross Avenue du Général Leclerc in several stages. Continue along Avenue Larroumès (D148). At the crossroads, cross the D127 and continue straight ahead.
(26) Just before the Gymnase Ronsard, turn left into Parc de la Bièvre. Pass between two playgrounds and continue straight ahead. Leave the park and cross Impasse Pierre de Ronsard. Continue opposite in Parc de la Bièvre and walk between the D127 (Avenue Flouquet) on your left and the Bièvre on your right. Further on, cross the river and walk along it on your left.
(27) Cross Avenue Victor Hugo on the right-hand side, turn opposite onto Avenue de la Liberté and walk alongside Fresnes prison. At the first set of traffic lights, turn right towards Parc des Prés de la Bièvre. Enter the park and immediately turn left. Cross the Bièvre and wind your way through the park, keeping a general south-westerly direction. Leave the park and come out onto Avenue Saint-Exupéry and follow it to the left. Immediately turn left again onto Rue du Docteur Schweitzer. Follow this street, which winds its way through a residential neighbourhood with a series of right-left-right turns.
(28) Join Avenue Paul Vaillant Couturier and follow it to the left, parallel to the A86 motorway. Shortly afterwards, take the footbridge over the motorway. On the other side, go around Parc du Moulin de Berny on the right and follow Allée de la Grenouillère to Boulevard Pasteur (D127). Follow this road to the right and, further on, just after Rue des Jacinthes (on the left), turn right onto Rue Yvon. Immediately turn left onto Rue Louis. At the end, turn left.
(29) Join Boulevard Jean Jaurès (D267), which immediately becomes Rue Jean Moulin (D67) as you enter Antony. Shortly afterwards, turn right into Parc Marc Sangnier and cross it, making a wide circular to the left. Exit onto Rue Arthur Blanchet and follow it to the right. At the T-junction that immediately follows, turn left onto Rue René Barthélémy. Cross Rue Jean Moulin and continue along Rue des Iris. At the end, turn right onto Avenue du 11 novembre 1918. Cross Avenue de la Division Leclerc (N20) at the traffic lights.
(30) Shortly afterwards, turn left onto Rue Madeleine. At the end, turn left onto Rue Céline and then immediately right onto Passage de la Bièvre, a small cul-de-sac. At the end, first turn left then right to pass under the railway bridge. On the other side, continue straight ahead onto Rue de l'Abreuvoir. Further on, when the street turns left, turn right. Cross Rue Propser Legoûté and arrive at the entrance to Parc Heller.
(31) Enter the park on the right. Go around the castle on the right (pond and fountains). Then turn left and walk along the sports fields on your right. Next, walk along a pond and then the Stade Georges Suant. Come out onto the street of the same name and follow it to the right (do not take the footbridge that crosses it).
(32) Shortly afterwards, turn left onto a path that crosses the Bassin de la Bièvre Nature Reserve. Walk along a reservoir on your right, then the river. Further on, cross Rue Marius Hue on your right and cross the green corridor.
(33) Turn left, cross Rue du Pont de Pierre and follow the green corridor towards Massy until you reach the 19 March 1962 roundabout.
(34) Go around the roundabout on the left (leaving the GR®11 trail on the right towards Verrières). Continue along the green corridor along Avenue des Martyrs de Soweto (D156E).
(35) At the crossroads (access to the left for Massy-Verrières station), continue straight ahead along Avenue des Martyrs de Soweto, alongside the railway tracks. Go around the Salvador Allende roundabout on the left and continue straight ahead on the avenue of the same name. At the next roundabout, turn left onto Avenue Raymond Aron. Continue straight ahead until you find Massy-Palaiseau station on the left (E).
To return, take the escalator to the station. The Transilien V and RER C platforms are directly accessible. The RER B platforms are at the other end of the footbridge.
Visorando member
Easy 
Moderate 
