Park at the start of the Route Napoléon on the hard shoulder.
(S/E) Follow the Route Napoléon as it climbs for 3 km; it becomes tarmac-surfaced at a house on the left. Pass the house and continue uphill for a few hundred metres.
(1) Turn onto a path on the left with a hairpin bend. Follow this gently ascending path.
(2) At the end of the track, turn left and head due south until you reach a track on the left.
(3) Please note: leave the main track and turn left towards the north-east.
(4) Take the track that winds sharply to the right and follow it down to a road.
(5) Turn left and follow this road, passing through Arcy and continuing straight on to join the Tarare–Roanne road (N7). Please note: this is a busy road.
(6) Follow it for about a hundred metres and turn right onto the D79 towards Joux. Follow the road that runs alongside the reservoir.
(7) At the end, take the hairpin bend to the left and continue round the reservoir.
(8) At the dam, take the track on the right and follow it straight on until you reach a cross-track.
(9) Take the hairpin bend to the left, join a road and head down to the right until you reach a roundabout.
(10) Go round the roundabout on the right and join the Route Napoléon to reach the car park (S/E).
