Starting point: Oise-Pays de France Regional Nature Park House.
Yellow signpost "L12".
(S) Coming from the Maison du Parc, with your back to the village of Orry-la-Ville, after the footbridge over the railway line, take the path opposite (in the middle, south-west). At the fork immediately after (not shown on the 1:25,000 map), turn left. Continue along the sunken lane and, at the Carrefour de Broutillerie, continue south-west.
(1) At Poteau Nibert, follow the signs opposite for "Route des Granges au bois, vers Hérivaux".
(2) At the next crossroads, Croix de la Grange aux Bois, plot 535, turn right. Then follow the second path on the right (white markings): 10 metres further on, on the right, you will see two trees entwined (a beech and an oak). Retrace your steps and turn right to continue along the Route de Luzarches (north-west).
(3) At the next crossroads, turn left. Go through a gate and continue straight ahead along the fence. At the end of the forest, continue straight ahead along the field. After the farm shed, turn right down the hill and follow the woods and then the wall. Go down towards the castle. Follow the road on the left that runs along the farm wall.
(4) At the crossroads with the road, turn right, continue along the small road which turns into a track and cross the hamlet of La Biche. At the end of the fence before the field (car park), turn right and take the paved path. Ignore the paths on either side.
(5) At the first crossroads, take the path on the right. Go straight up and then take the second path on the left until you reach the Poteau d'Hérivaux (plot 465).
(6) Turn right and follow Route de la Verrerie (east-southeast) for about 1 km.
(7) At the Carrefour des Moines (star-shaped intersection, plot 460), turn slightly right, follow plot 492 (on your right) and continue straight ahead until you reach Poteau Nibert.
(1) At the crossroads, take the second road on the left signposted "Route de la Grange au bois, vers Orry-la-Ville". At the next crossroads, continue straight ahead until you reach the house in the park.


