Head towards Col d'Izoard and Cervières via the D902.
In Cervières, just after the chicane at the entrance, head up to the higher part of the village via the first intersection on your left to join the D89T at the Saint-Michel church. Cross the Bourget plain, pass the chapel and then the Bourget farmhouses, and park at the entrance to the path on the right-hand side of the road, about 450 m from the hamlet.
(S/E) Take the path south and cross the Cerveyrette.
(1) Immediately after the bridge, take the wide path on the left which climbs steeply through the larch trees to the south up to an altitude of 2,040 metres. Continue south off the path to the edge of the forest (a few cairns).
(Peak 2719 is now clearly visible. You will need to pass to the left of this peak).
Continue south through the pastures to the shepherd's hut (2350m).
(2) Head towards the Col de Prafauchier to the south-west, following the ridge of peaks 2770 and 2719, which should be on your right.
In the scree, climb up following the red markings and then take the path to complete the ascent of Col de Prafauchier (2746m).
(3) Head right towards the north-west, following the ridge line for 410m, to reach an altitude of 2840m.
(4) Then follow the slightly undulating ridge (on the IGN map, this is the blue trail of the ski touring route) for 1km in the same direction to the Cime de la Charvie (2881m).
(5) Descend the south-west ridge for 1 km, then west along the scree before reaching the horizontal section of the Col du Lasseron to the north.
(6) Follow the valley of the same name northwards then north-northeast (on the IGN map, this is the blue route).
Be careful as there are chamois in the area.
At the end of the valley, begin the descent in the same direction, following the well-marked path dotted with cairns to La Cerveyrette.
(7) Turn right and follow the stream east-south-east without crossing it.
Continue along the left bank of the Cervereytte and further on, you will reach the second bridge, the one at the start (S/E).
(1) Turn left and return to the car park (S/E).