Park in the large car park at the Maison du Parc at the entrance to Vallouise when coming from L'Argentière-la-Bessée.
(S/E) Cross the car park and then the Onde, a torrent originating from the glaciers surrounding Les Bans to the west.
(1) Head west along the road to the Chambonnettes winter caravan park and you will soon reach the D504. Turn right and follow it for about 400 metres before turning left into a small lane. Climb an iron staircase to reach a new road. Turn right and you will arrive at the square and church in Vallouise.
(2) Go down to the right, cross the Gyr and continue to the right on the RD994E for about 300 metres. Cross (be careful, this is a busy road) and take the road on the left that leads to the cemetery and quickly turns into a path.
(3) Continue south-east, pass a path on the left and reach the road serving the housing estates in La Casse. Turn right, then take the second street on the left. After a hairpin bend, you will reach a path where a signpost indicates Petit Parcher.
(4) Turn right at the hairpin bend and follow this wide path straight ahead. Cross this hamlet, continue straight ahead on the D704 and reach a crossroads called Croix. Turn right onto the small road going downhill, find a small path between two fences and reach the Grand Parcher road. Turn right and reach the crossroads with the RD994E.
(5) Cross the RD with caution, then cross the bridge over the Gyronde. Ignore the first track on the right and take the second one. Begin a slight ascent and stay on this wide track, ignoring all the paths on the right or left. You will reach the top of the pumping station and a small dam.
(6) Begin a rapid descent and reach a crossroads of tracks. The one on the left is a ski track; take the one on the right to reach the D504 and the car park (S/E).