(S/E) From the Martinette car park, walk up the main road for a good fifty metres.
Cross the road and take the path opposite, then come out onto a minor road.
(1) Head down to the left towards Fond de France, cross the village, and take the first path on the right to descend to the Pont de la Sauge.
(2) Cross the bridge and take the path opposite which begins to climb through the forest. Stay on the main path, leaving the signposted route to the Pissou waterfall on your left. Continue the climb, cross a track and reach a junction: signposted “Le Ruisseau 1540m”.
(3) Ignore the path to the right leading to the Gleyzin chalet and continue climbing to the left into the Bréda valley along a winding track; reach a small plateau followed by a short descent. Continue climbing, cross a small stone bridge before a steep slope leading to the shores of Lac Noir.
(4) At the Col de la Vieille, continue climbing, leaving Lac Noir on your right, and head right towards the Lac Carré dam, which you reach near an old building.
(5) The route normally continues along the foot of the dam downstream. However, in 2018, due to maintenance work on the dam wall, it was possible to pass at the foot of the other side of the dam and then rejoin the normal route at the other end.
(6) Turn right onto the path overlooking Lac Carré, continue for 200m to reach the shore of Lac de la Motte after passing near Lac Cottepens.
(7) Turn back.
(6) This time, do not walk along the dam on either side, but head down towards some huts, go round two small lakes, then rejoin the path leading back to the Col de la Vieille.
(4) Then turn left for a long descent, initially along the winding, rocky path of the Cul de la Vieille. Further down, you’ll come out at the Chalet du Gleyzin de la Ferrière.
(8) Head down to the right.
(3) Follow the route of the outward journey back to the Pont de Sauge.
(2) At the end of the bridge, turn right and head down towards the D525A.
(9) Head down the road and you’ll easily find the car park (S/E).