To return to the starting point, follow the D17, then the D283, and at the crossroads, head north and park in the mandatory car park (altitude 709).
(S/E) Leave the car park and go up to the left at the end of the road, then take the track. Follow the yellow and red markings and continue to the right for a few metres until you reach a fork.
(1) Turn left onto the path leading to the Saut des Maillys.
(2) Admire the magnificent waterfall, then retrace your steps to the previous fork.
(1) Turn left and follow the yellow and red markings on the road heading south-east. At the end of the road, after a small car park, the path splits into two branches.
(3) Go left (A/R) towards the bank of the Ain, taking the stone path that descends and continue to the source of the Ain.
(4) Go back up the path to return to the previous fork.
(3) Turn completely left and take the path that climbs into the woods, offering a bird's-eye view of the source of the Ain.
(5) Leave the forest path and follow a trail on the left that loops around and then runs along the side of the Ain, following the yellow and red markings. Pass the paths on the left and at an elevation of 708 metres, keep to the right until you reach a fork.
(6) Leave the path for a short detour to the Moulin-du-Saut, following the yellow and red markings.
(7) There is a viewpoint with information panels about the use of water power and the old Moulin du Saut (or Sault) mill in ruins, followed by a small dam upstream from the first waterfall on the route.
Turn around and return to the previous fork.
(6) Turn left onto the yellow and red marked trail and follow it for a few hundred metres.
(8) At the car park, leave the yellow and red markings and turn left onto a forest track. It climbs towards Doye, and the markings are now yellow. Turn left onto a road at the fountain and cross the village until you reach the fork at the exit.
(9) Take the road on the left that descends and gives way to a gravel path. Reach the bank of a stream.
(10) Cross the Ruisseau de la Combe Sandon and continue with the stream and the Cascade du Moulinet on your left, following the yellow and red markings. At the crossroads, continue left and arrive at the bridge over the Ain.
(11) Cross the bridge, turn left and follow the banks of the Ain until you reach a fork.
(12) Leave theGRP®, turn right, heading south-east, and return to the car park where you started (S/E).
Despite the overcast weather, the walk was a bright one 