Park in the car park on Rue du Général de Gaulle, heading towards Renauvoid (Passée Communale).
(S/E) Cross the road and head towards the Fontaine des Trois Soldats fountain, following the red cross markings.
(1) Follow the red disc markings and cross the Canal d'Alimentation du Réservoir de Bouzey. Turn right and follow the small stream to reach the Treize Cantons.
(2) Continue west, reach the D51 road, cross it, stay on the red disc trail towards the Bois du Marquisat, then towards the Poudrières ruins.
(3) Continue along the path to reach the Roches d'Olima.
(4) Climb gently. Stay on the red cross trail, which rejoins the Canal d'Alimentation du Réservoir de Bouzey. You will then reach the car park (S/E).