For parking, there is a car park at Saint-Étienne Church, Rue du Colonel Fabien, and another on Rue Roger Salengro and Rue Maillard. There are also spaces in the surrounding streets.
(S/E) When leaving the church car park, turn left onto Rue Gabriel Péri (D184), then turn right onto Rue Maillard.
(1) At the end of the street, cross Sentier de Derrière les Murs and take the path diagonally opposite. At the crossroads, turn right onto the path, cross the crossroads going straight ahead and you will reach the Pierre Longue junction.
(2) To see this, turn right and walk about 500 m. (closed during hunting season).
(3) Return to the fork, take the route on the right with the GR® de Pays de la Plaine de France: yellow and red markings. Pass three paths on the right and left and reach the place called Au-delà de l'Eau at the entrance to Bellefontaine.
(4) Turn right onto Allée de la Prairie, then at the end, turn left and follow a branch of the Ysieux. At the end, join the GR®655 and turn right onto Rue des Sablons. Pass a lake on your right and reach the crossroads at the Bellefontaine town hall.
(5) Turn right onto the RD922, then turn left onto Place Lavoisier and climb the steep path known as Avenue du Cerisier until you reach the road.
(6) Take the path going uphill on the left (Chemin de la Porte du Parc). At the crossroads at the edge of the woods, keep to the right and continue to the next crossroads (elevation 112).
(7) First turn right then left and continue straight ahead on Chemin du Frêne. At the crossroads, turn diagonally to the right and at the end, turn left onto the tarmac road towards Château d'Hérivaux : castle and farm, former abbey nearby. Horses may be present in the meadow.
(8) Walk along the boundary wall and continue to a crossroads.
(9) Turn right, with the barn on your right, and continue to the next crossroads. Take the road on the left towardsthe old Hérivaux mill: 13th-century ruins - a beautiful residence is under construction. Note the presence of fish ponds and several springs.
(10) Return to the crossroads and continue left. Pass the few houses in La Biche and arrive at a crossroads on the edge of the forest.
(11) Turn right onto Route Pavée de la Ménagerie, then right again at the Ménagerie crossroads to follow Route de Luzarches.
(12) Cross Route d'Hérivaux at Carrefour des Hautes Coutumes and continue straight ahead to Carrefour de Luzarches.
(13) Cross the junction and take Route des Moines opposite to reach Carrefour de la Grange des Bois.
(14) Take the track diagonally to the right, south, staying on Route des Moines, cross Route de la Vallée aux Prêtres and join the Trou Braconnier crossroads.
(15) Turn right, join Chemin des Essarts de Belle Fontaine in Survilliers and head left, following the edge of the forest.
(16) Turn right, leaving the forest and crossing a field to join a PR® at a sports centre. Turn right and walk for about 200 metres.
(17) Take the GRP® de la Plaine de France (Chemin des Noyers) on the left. At the end, cross the D922 at the protected crossing and turn left to follow it (Rue de laPrairie de Rocourt).
(18) Head right towards the allotments, following the path through the garden plots, then turn left to walk around the pond clockwise, passing in front of the Rocourt Fountain.
(19) At the fork, turn left and head towards the star-shaped crossroads opposite the stadium. Continue straight ahead, passing the Sablonnière stadium on your left. Chemin de Fosses
(20) Turn right and then left, continue straight ahead along a large field on your right, walk alongside the Domaine du Belloy housing estate and return to the first crossroads you passed at the start.
(1) Turn left onto Rue Maillard, join Rue Gabriel Péri and take the D184 on the left to return to the church car park (S/E).