There is a car park opposite the town hall in Andryes.
(S/E) Head to Rue de la Mairie towards the bridge and the wash house.
(1) Turn left after the bridge to reach Rue de la Levée, which leads to the D73. Follow it to the left.
(2) At the car park, continue along the observatory trail on the wooden bridge that crosses the marsh to reach the Marais de Druyes observatory. Then return along the same path to continue the hike along the road on the left.
(3) After a crossroads, leave the D73 and head up towards the Bridart valley towards Fontenailles and continue along the path through the forest.
(4) Turn left and continue along the path to rejoin the D73, then follow it to the right for a few metres.
(5) Turn left onto the path to cross the bridge over the Druyes river, then turn left with theGRP® towards Villesavoie.
(6) Leave theGRP® des Méandres de l'Yonne, then continue right on the uphill path with many bends in the forest.
(7) After passing the Croix aux Moines, turn left onto the path that crosses the fields to the Andryes quarries.
(8) Once you have passed the Andryes quarries, turn left onto theGRP® des Méandres de l'Yonne and continue along Rue de la Chapelle.
(9) Turn left at the entrance to Villeprenoy and follow the sign for Andryes. Walk along the Bois du Lez and pass the Camping le Bois Joli campsite.
(10) Follow Rue de l'Église opposite, which goes around the cemetery, and go downhill to reach the car park opposite the town hall (S/E).