Start from Chemin des Sources, near the town hall of Souzy-la-Briche. Parking is available either in the town hall car park or in a smaller car park on the Terrain René Chantalat, which is located on the edge of Chemin des Sources before you reach the town hall when coming from the town centre.
Yellow signposts
(S/E) Return to the town centre (south) via Chemin des Sources. Just before No. 2 on the street, turn right onto Sente de la Rablennery (if you arrive on Grand Rue, turn back). Climb between garden fences and, after a few steps, you will come out onto Rue des Roches. Cross the road and take the path opposite (not shown on the IGN map), leaving the chapel on your right. Slip between two horse fences and come out onto a wider path (signpost). Turn left at an acute angle and follow the path downhill.
Red and white markings
(1) At the crossroads, continue straight ahead (south-southwest) on theGR®11, following the wall of a property on your left.
(2) At the next crossroads, continue straight ahead (south-west) on theGR®, following the horse paddocks on your left. Continue west between cultivated fields. At the corner of a wood, turn left (south-west) to follow the wood on your right. Go through a forest gate and enter the Bois de la Grange. Cross the woods, staying on the main path, heading south-west, and ignoring the paths branching off to the sides. Go through another forest gate and walk along the edge of the woods with fields on your right. Further on, the path curves to the left and passes between fields.
(3) At the crossroads (farm buildings opposite), turn left and take a path bordered by a hedge on the left and a field on the right (the start of the path is discreet, so be careful not to miss it). Look out for the ruined Tour de la Grange on the left and reach a fork with two forest barriers.
(4) Go through the forest barrier on the right (GR® signpost) and descend steeply on a path through shrubbery. At the bottom of the descent, turn right onto a small road. At the next intersection, continue straight ahead on Chemin de Saint-Chéron. Follow the street to the church in Villeconin, located on the left.
(5) Turn left at an acute angle, pass the church and note the Château de Villeconin on your right through the gates. Cross the Renarde and, at the fork that follows, turn right towards Etrechy (sign). At the next fork, at the war memorial, turn right again towards Etampes (sign). After a few dozen metres, turn right onto Promenade des Prés. After crossing a stream, the lane gives way to a gravel path. Walk alongside a sports field on your left.
(6) At the fork (signpost, marker "Sur les traces de la Renarde"), follow theGR®11on the left (south-southwest) and leave theGR®111Cturn right. Walk along a field on your left and then enter a wood. Stay on the main path, ignoring a few paths on the right. The path begins to climb into the woods and then levels out. When you leave the woods (signpost), continue straight ahead (south-southwest) between the fields. After passing a grove on your left, at a fork, go left towards a farmhouse.
Red and white + yellow markings
(7) At the T-junction ("Renarde" marker), turn left and follow the small road downhill. At the bottom of the descent, turn right onto Route du Moulin à Vent.
Yellow markings
(8) At the corner of an ochre-coloured house with a gravel driveway, leave the road and theGR® trail continuing south and turn left onto a grassy path. Stay on the edge of the field on your left and the woods on your right. You will come out onto a road; follow it to the right as it climbs (be careful; the right-hand shoulder is wider and recommended). At the crossroads at the top of the hill, turn left towards Saudreville (ignore the yellow arrow you saw earlier indicating a right turn; there are two differentPR® signs at this point). Pass the castle on the left of the road.
(9) At the crossroads, turn left into Rue des Pressoirs. At the first fork, turn right, and at the second, follow the Ruelle du Poivrier on the left, which starts to the right of a small house with a distinctive red-tiled roof. When you reach a wooden fence on the left, turn right onto a path (it feels a bit like you are entering the courtyard of the house opposite, but it is a public path). Turn right immediately along the path. At the T-junction, turn left. At the next fork, turn right. At the next T-junction, turn left, pass under a water tower and leave Saudreville. Follow the small road for about 100 metres.
(10) Leave the road and take a path that branches off to the left between the fields. Stay on the main path heading north-east, turning slightly to the right at a fork and leaving a few copses on your left (note an abandoned hut on the left of the path just after the 148 metre mark). After passing through a copse, the path curves to the left.
(11) At the fork at the corner of a copse, turn right (east-northeast) and follow the copse on your left. At the T-junction (signpost), turn left. Cross a small road and continue north between the fields.
No signposts
(12) Leave thePR® trail on your right (signpost) and continue north into the Bois de la Guigneraie.
N.B. The "No entry" sign only applies to motor vehicles. The barrier and "No entry" sign immediately after on the right do not apply to the path, which, according to information obtained on site, is open to the public.
Initially wide and flat, the path through the woods becomes narrower and descends, with stones protruding from the surface. Unless we have misidentified the location, contrary to what the IGN map suggests, this is the only path and there is no fork at the "u" in "Guigneraie". At the bottom of the descent, cross a road (take care) and continue on a path opposite, following the wall of a property on your right. Cross the Renarde and you will come to the junction you took on the way there.
Red and white markings
(2) Turn right and follow theGR®11, keeping the wall on your right.
Yellow markings
(1) At the crossroads, leave theGR® on your left and continue straight ahead uphill. Don't miss the signpost where you need to turn right at an acute angle (if you reach a road, turn back). Go down between two fences, cross the road at the chapel, go down the stairs and then the path and, at the bottom, turn left onto Chemin des Sources to return to the parking area (S/E).