
thanks to Bernard Théret
This small sector gathers a few problems, all lichened except an exceptional traverse (June 2009). From Arbonne, follow the D64 in direction of Achères and park the car near the top of the 17 bends. Follow Le Chemin des Cassis for 400m : the boulders can be found on the left of the path, 200m before the motorway.
| 39 | La Murène 7b+ | traverse fltr / pockets | Bernard Théret |
| just left of Le Chemin des Cassis, 50m before Bide Bosse. Start completely left with a pocket right hand and traverse to the right. Lichened (June 2009). | |||
| 40 | Bide Bosse 7c | traverse frtl / slopers | Bernard Théret |
| 40b | Bide Bosse en aller-retour 8a+ | traverse / slopers | Bernard Théret |
| 41 | Coup de Feu 7a (7a+) | wall / sitstart | Bernard Théret |
| 42 | L'Abribus 7a | wall / underclings | Bernard Théret |
| 43 | The Pente 5+ | wall / arete | Bernard Théret |
| 44 | L'Effaceur 6b+ | traverse fltr / wall | Bernard Théret |
| in the corridor, on a boulder above Bide Bosse, just under the plateau. Start right with crimps, traverse to the left and exit in The Couloir. Lichened (June 2009). | |||
| 45 | The Couloir 6a | wall | Bernard Théret |
| vertical problem to the left of a corridor, on a boulder above Bide Bosse, just under the plateau. Lichened (June 2009). | |||