The route starts at Place Denfert Rochereau, opposite the Salle Agapit.
(S/E) Head north-east along the side lane of the square and join the D611. Follow it to the right until you reach the bridge over the Ruisseau du Puits d'Enfer. Turn right onto the path just after the bridge and walk along the stream until you reach the first path on the left.
(1) Turn left onto this dirt track and head towards the house by the railway line. Walk alongside the track, then head towards Rue de la Maladrerie.
(2) Turn right onto this street and head towards the D611, which you will follow to the pedestrian crossing. Cross the road carefully (heavy traffic at certain times). Take Chemin de la Lanterne to the crossroads and turn right onto Chemin de la Cueille until you reach the first path on the left.
(3) Take this path uphill until you reach another path on the left, which you should continue along. Pass the small stone shelter and continue until, at the edge of the woodland, you reach the narrow path that leads to the site.
(4) Turn right and walk carefully along this narrow and sometimes very slippery path until you reach the top of a log staircase.
(5) Carefully descend the steps to reach a wooden footbridge crossing the stream. Cross to the other side and follow the stream as closely as possible, then head up to the left until you reach the striking tree on the right. Continue along this path, which levels out and then descends to another footbridge.
(6) Cross this footbridge and head back up towards the south-west. Take the steps on the right and reach the car park. Head north, cross the housing estate and reach the D121, which you follow to the right until the roundabout.
(7) Cross the road and take the Chemin de l’Ancienne Ligne downhill. Further down, cross the small road and take the grassy path opposite, which is blocked by wooden sleepers. Walk past the houses, reach the Impasse du Coteau and arrive at a crossroads.
(8) Take the small path opposite, between the houses, and reach Rue de Chausseroi, which you follow to the traffic lights.
Cross the junction and follow Rue de la Plaine. Just past the house, take the path on the right that runs alongside the road. Ignore the two streets on the right and head towards the glass recycling bins.
(9) Turn left into Rue du Lion, then left onto Avenue de Belfort. At the next junction, turn right into Rue Edmond Proust Chaumette and head towards the entrance to the Hall Denfert site
(10) Cross the car park, walking alongside the halls, to reach the paths surrounding Place Denfert. Take the path on the right until you reach the bank opposite. Turn left, cross the D611 and return to the starting point (S/E).