Depart from the car park on the right-hand side of the D101 (Orléans road) at the Semoy exit (towards Chanteau, Marigny les Usages).
(S/E) Take the wide, straight forest path (GR® 3B) after passing the barrier that limits access.
(1) Turn right at the first intersection onto the road known as Route de Semoy. Pass the old railway line.
(2) When you reach a tarmac crossroads, turn left onto the lane, leaving Route de Semoy on your right. Turn right at the crossroads to follow the old railway line. Go through the gate, then follow the winding path. This runs alongside the main course of the Ruet stream to the Étang de Ruet pond on your left, which you will follow until you come to a footbridge at the edge of the pond.
(3) Turn left onto the footbridge to cross the Ruet, then follow the pond on your left, which is an ideal spot for wildlife watching. At the end of the path, cross the Ruet again on the right to reach a wide cross-path (with steps), which you will follow to the right. Ignore the side paths and continue along the straight Allée Pouet to the Château de Charbonnière. Go around the château on the left, following the small tarmac road.
(4) The lane crosses a side road. The tarmac quickly gives way to a forest path after the intersection with a small side road (Rue de Charbonnière).
(5) At the next crossroads, leave the busiest lane, Rue de la Borde, and take a grassy path on the right. Cross Rue de Charbonnière. Access to the lane is restricted by two barriers on either side of the street.
(6) At the next crossroads, turn slightly right, leaving Rue de Compoint on your left and Rue de la Grenouillère on your right.
(7) At the next crossroads, take the leftmost lane marked Voie Verte and continue along it until you reach the stud farm.
(8) At the crossroads at the edge of the stud farm, continue straight ahead on the busiest lane and stay on it until it intersects with a cross lane after running alongside the old railway line.
(9) Turn right onto the cross road and follow its twists and turns until you return to the starting point of the walk in the car park on the edge of the D101 (Orléans road) (S/E).