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Departure from the church square in Janvry (access via the A10 or N118, exit "Les Ulis"). Parking is available in the church car park or along Rue du Marchais.
The route is fully signposted but, in open fields, there are almost no signs due to a lack of support. There are also numbered markers from the Communauté de Communes du Pays de Limours, which are referred to in the description below.
Red and yellow signposts
(S) At the point furthest from the church, take Rue du Marchais (on the right with your back to the church). Follow the moat and pass in front of the main gate of the castle. At the fork at number 9, leave the road and follow the gravel path on the left. Turn immediately right between two buildings and continue along a grassy path with a hedge on your right.
(1) Join Rue du Marchais coming from the right and turn left (north-northeast) onto a path that descends slightly between the fields.
Red and yellow + yellow markings
(2) At the T-junction (marker no. 18), turn right and walk along the edge of the Bois des Bezelles on your left.
(3) At the next junction (marker no. 17), turn left and enter the woods via a path that starts to the left of a large gate. The path winds downhill, initially between two fences. At the bottom of the descent, cross a sparse area (recently cut), a copse and then a clear forest.
(4) Cross a stream and climb up a path that quickly becomes paved. The slope becomes steeper and leads to a small road on the plateau (marker no. 16-3).
(5) Follow the road to the left. When the road turns right, note the top of the chapel on the left, which protrudes above the castle walls. You will reach the entrance gate to the Château de Saint-Jean-de-Beauregard (marker no. 16-2).
(6) Turn left (west-northwest) onto a wide path. Note the contrast between the landscapes: on the left is the castle grounds with the castle visible in the distance, on the right are cultivated fields and in the distance are the large housing estates of Les Ulis... At the end of the park boundary, continue west-northwest along a grassy path that passes between two dead trees and then curves to the right.
Yellow signposting
(7) At the three-way junction (Borne n°16-1), leave theGRP® du Hurepoix heading towards a farmhouse and turn left (west). Pass a copse and follow the grassy path that winds between the fields (the yellow signs with two sides provide good landmarks). Reach the edge of the woods and continue west with the bell tower of the church of Gometz-la-Ville clearly visible.
(8) At marker no. 16 (an old signpost in poor condition), continue a few metres towards the church and, directly below the high-voltage power line, turn left towards the water treatment plant (there are no arrows or markers here; keep the high-voltage power line on your right).
(9) Turn left onto the small road (yellow arrow) and cross a stream. Follow the road (be careful, the verge is narrow) and climb gently up to the hamlet of La Brosse.
(10) At a fork about 250 m after the sign for the hamlet, take the road on the left (Chemin de Champreau; sign for "Voie sans issue"). When the road bends to the left, continue east on Chemin de Champreau (sign) which becomes a dirt track and then a grassy track. After about 1 km between the fields, you will come to the marker No. 18 that you passed on the way in.
Red and yellow markings
(2) Turn right at a right angle and head back up towards Janvry.
(1) Take the path on the right and, at the end, turn left to rejoin Rue du Marchais. Turn right, pass the castle again and return to Place de l'Église.
😊 As expected
Visorando member
Easy 
Association / Club / Walk leader
Not specified 
