Parking opposite the church in Saint-Cyr-Sous Dourdan (access via the A10, "Dourdan" exit).
No signposts
(S/E) Take the street that passes in front of the church and crosses the village towards the east.
Red and white markings
(1) Pass a footbridge and a wash house on your right. Join a road coming in from the left and enter the village of Levimpont. Ignore a small road going up to the left (red and white cross).
(2) Take the small road on the left just after this. The road quickly turns into a path that climbs gently northwards, first through fields and then through undergrowth. You will reach a road.
(3) Take the road on the right. After a few dozen metres, turn left onto a path that enters the forest. Walk eastwards on the Butte de Tous Vents (viewpoints). After a short descent, you will reach a small pass at an altitude of 135 metres. Turn left until you reach a crossroads of paths in the undergrowth.
(4) At the crossroads, turn right. The path soon leaves the forest, runs alongside fields, passes under high-voltage power lines and then winds its way between two hedges (brambles). You will come to a perpendicular path, which you take on the right until you reach a road.
(5) Take the road on the right (be careful, there is usually quite a lot of traffic). Pass in front of a pond with the Château du Marais in the background. At the crossroads, take the road on the left (towards Saint-Chéron). After a few metres, take a path on the right that leads into the woods. The path climbs gently through the forest, heading south, and when the slope becomes steeper, it makes a zigzag first turn right then left to go around a private property. You will come to a perpendicular path.
Red and yellow markings
(6) Turn right. The path is flat, initially in the undergrowth and then on the edge of the woods.
No markings
(7) About 200 metres after leaving the woods, turn left, heading south, onto a wide path between two cultivated plots. This path leads to another wood at a crossroads (elevation 156).
(8) Take the path furthest to the right, which is unmarked and runs along the edge of the woods (do not follow the yellow signpost that directs you down into the woods towards Sermaise). Pass a shed, turn left and you will arrive at a farmhouse.
(9) Then take a road on the right which, after a right-hand bend, heads north. Follow the road for about 1 km, until you reach elevation 158.
(10) At elevation 158, turn left (west) onto a path between cultivated plots. This will take you to another road.
(11) Take the road on the left. After about 200 metres, turn right onto a path between plots of land. Follow this path due west for about 1 km until you come to a perpendicular path (elevation 156).
(12) Turn right, cross a meadow and join aGR® trail at the edge of a wood.
Red and white markings
(13) Continue through the undergrowth, then at the edge between the woods and a field, head north-west.
(14) At the bottom of the field, turn right at a right angle before a concrete footbridge without a railing. Head northeast to the Pont de Rué bridge.
(15) Take the road on the left and, after a few dozen metres, turn right onto a path that leads to a river, which you cross via a footbridge with a wash house on the left (which you passed earlier at the start).
(1) Then take the road on the left to the church of Saint-Cyr-Sous Dourdan (S/E).
