Start from the Bois de Marœuil car park, on Allée des Tilleuls.
(S/E) From the car park, turn right, walk along the edge of the woodland and then enter the woodland by taking a sharp left turn. Continue straight on (note: part of the path may be muddy after rain), leave the woodland and turn off the track onto the path on the right. Carry on to the edge of the woodland until you reach a fork.
(1) Turn right, go through the gate and, when you reach the tarmac, turn right (Rue de Marœuil) and follow the road to Bray.
(2) Keep to the left. Cross the Scarpe, then turn left onto Rue de l’École and continue to the level crossing.
(3) Turn left, then go straight on to the end. Keep left, then veer slightly right onto Rue de la Gare, and continue to the wayside cross.
(4) Continue to the right, then take the second on the right, Rue du Général de Gaulle. Take the first left. Keep left at the pumping station and continue to the end of the street.
(5) Turn right onto Rue d’Étrun, then take thefirst left and carry on straight ahead until you reach the confluence of the Gy and the Scarpe.
(6) Turn sharply left and walk along the Scarpe on your left. At the end of the path, turn right to leave the marsh and arrive at the Source Sainte-Bertille.
(7) Walk past the spring and, a little further on, you’ll reach Rue de la Marlière.
(8) Follow it to the left until the end, then first turn right then left onto Rue du Four, then turn right onto Rue Notre-Dame and follow it until you reach Rue du Moulin.
(9) Turn left onto this street and continue along it until you reach the waterfall.
(10) Take a moment to rest, then carry on along this street, with the waterfall behind you. Head straight on, then take the path on the right once you’ve left the residential area. Carry on until you reach the gate.
(11) Follow the path to the left, then go straight on until you reach the junction you passed on the way there.
(1) Turn right, walk past the forest ranger’s house and follow the path to the right. At the next junction, turn left and then left again at the end, uphill, to reach the car park (S/E).