Avenc de la Bona Vista

At the head of the fondo de Vallbona (Garraf). From Campgràs, take the path to the pla de les Basses, following the perimeter of the landfill. When the small path that descends toward the Bassot de l'Arbre appears on the right, continue along the right-hand ridge and descend to the level of the Avenc dels Arítjols. The entrance is located a few metres to the right of the ridge line (west).