(S/E) From the Pic P1 car park, walk past the eyewear factory and take a small path leading to the Pic P2 and P3 car parks ("Parking du Haut du Pic"). At the road, turn right to go around P3 and reach P2.
(1) Start on the rocky path that climbs northwards (yellow markings) to the foot of the peak through beautiful dry grasslands. Atthe fork, go straight ahead. A steep climb (white and red markings) leads to the Pic de l'Aigle.
(2) The path continues to the right, north-east, winding along the wooded ridge. It approaches a forest road twice and leads to the Belvédère des Trois Lacs (Ilay, Grand Maclu and Petit Maclu).
(3) Follow a stony path along the ridge, which leads through the fir trees to the Belvédère des Quatre Lacs viewpoint.
(4) The path climbs up to the right to the Belvédère car park, below the Route Forestière du Bois de Ban. Follow the path to the left, which continues along a trail that runs alongside the ridge marked by a series of cliffs without ever approaching it. Via a rapid descent with hairpin bends, which can be slippery in wet weather, the path joins the edge of the D 75 at Côte de Maclu.
(5) Take the cycle lane on the left at the edge of the road(yellow markings) to reach Lac du Petit Maclu. Follow the path on the left at the bend to reach the lake.
(6) Follow the path that runs along the left side of the Petit Maclu and Grand Maclu lakes towards Ilay. At the end of Chemin des Lacs, the road on the left leads to Les Rousselets and its chapel, which seems to be nestled between two trees.
(7) Follow the road on the left(white and red markings) and take a path on the left that crosses the D39 twice, taking care.
(8) After the second crossing, take the path furthest to the right, then stay opposite and to the left. The well-marked path (former tramway) gradually climbs up to Chemin du Château. Then, at the intersection between the forest road and the path you started on (yellow markings) towards P3, continue straight ahead to reach the car park you started from (S/E).