Park in the small car park below Les Bassins.
(S) Continue uphill along theGR®510. Leave theGR® at the hairpin bend to walk alongside the ponds on the left. Then rejoin theGR®, marked in red and white, and head due north to reach the natural rock face used for climbing.
(1) Continue along theGR® through the Bois des Malines to reach the junction at marker 76 shortly afterwards.
(2) Keep to the right on theGR® to reach the Vallon Rousset junction at marker 77.
(3) Cross the road and continue straight ahead into the Bois de Rousset to reach another junction at marker 78.
(4) Turn sharply left (90°), still on theGR®, and pass marker 79 whilst crossing the Ruisseau du Vallon de la Combe. Walk slightly uphill to reach the junction at marker 80.
(5) Leave theGR® and take the path leading down to the left. This will take you to the Arche de Ponadieu.
(6) Turn back and head for the junction marked with signpost 80.
(5) Head straight ahead, crossing theGR®, to quickly reach the car park at the end of the route, which is situated at the end of the Chemin de la Siagne at marker 81 (E).