You can park at the "Les Prairiales" theatre, located at 21 Avenue de la Prairie.
(S/E) Cross Avenue de la Prairie and walk along the sports grounds. At the end of the path, turn left. Cross a small bridge and join the D28.
(1) At the stop sign, turn right. Take Rue du Jeu de Paume on the left, then Rue de la Garenne au Moine for 20 metres. Take the path on the right. It climbs and rejoins Rue de la Garenne au Moine. Follow it to the right for 250 metres. At No. 4, before the descent, take the path on the left.
(2) Cross the D328 and continue along the path through the fields. Descend slightly to the right into the woods, then continue straight on to Ponceaux, which you will bypass to the north via Rue des Graviers de Ponceaux and then the D101.3, finally joining the D101.5 at a crossroads.
(3) Turn left onto the dirt track until you reach the T-junction.
(4) Go up to the right. At the crossroads, turn left onto Chemin du Bois d'Olivet, then immediately right onto Chemin des Côtes. At the crossroads almost directly below the power line, turn left.
(5) When you reach Nigelles, turn left onto Chemin des Aulnes and continue straight on to Saint-Martin-de-Nigelles.
(6) Cross the Drouette river to the right and turn left (sports hall). Enter the undergrowth. Follow theGR® 655 (white-red markings).
(7) Take Chemin des Godets (GR®), then continue straight ahead to the church in Hanches.
(8) Turn left, pass between a stone wall and the hedge, then follow the Drouette river on the left bank.
(9) At the end of the fence, turn right towards Le Paty.
(10) Turn left onto Rue du Paty and follow the railway line until you reach the D28.
(11) At the stop sign, turn left onto the D 28 and continue for about 250 metres until you reach the first street on the right.
(12) Turn right onto Rue de Savonnière, then left onto Rue des Grands Moulins. Turn right to cross the two bridges over the Drouette and arrive at the car park (S/E).