Approach via the D11 and park below the hunting lodge (Sommière de la Jonction).
(S/E) Head due north towards the forest along the long straight stretch of road.
(1) Ignore the return path on the left and continue straight on along the Sommière de la Jonction. Pass the 295-metre mark (signpost 38).
(2) Turn left onto the dirt track and emerge onto the Sommière de la Réserve.
(3) Turn left onto the gravel track and continue through the woodland until you approach the D11.
(4) Without joining it, turn left just before the picnic area onto the dirt track to reach the forest track and the original junction.
(1) Turn right and head back to the car park (S/E).