(S/E) Departure from Roinville church. Take the road towards Dourdan, heading west, turn left after the Aldi store onto the path that leads to the pond. Go around the pond on the left until you reach a footbridge over the Orge. In winter, you can see geese and cormorants on the pond.
(1) 100 metres after the footbridge, turn right onto the road and, 100 metres further on, turn left onto theGR® until you reach a cross on the edge of the D148.
(2) Cross the D148 with caution andjoin a second road just after. Turn right for 50 m, then turn left onto a path that leads to a crossroads under power lines.
(3) Take the path on the left despite the presence of the red and white cross (neighbouringGR® ) and descend to the Moulin Poissard crossroads.
(4) Turn right at a 90° angle and follow the road to the hamlet of Moraise.
(5) At the entrance to the hamlet, take the path on the left that runs along the left side of the Moulin Rocher park. Cross the Orge river again, then the Mesnil Grand meadow, which can be a little wet at times. You will arrive at an old wash house. A few metres further on, turn right onto the D116 towards the Roinville exit.
(6) Leave the road and turn left onto a path that passes under the railway line. After the tunnel, turn left and then right onto a path that climbs up alongside the field and the woods. Continue along this path until you reach a small road, then turn left to reach a crossroads in the hamlet of Beauvais.
(7) Turn right and walk to the Châteaupers farm, visible behind the pond where the path ends.
(8) Retrace your steps.
(7) Turn right twice to take Chemin de la Cavée, which leads to Rue des Vignes, alongside the railway line. Turn right for 100 metres, then left into Rue de Beauvais to reach the church (S/E).

