Avenc de les Agulles

From the road from Begues to the Plana Novella, once at the coll de Puigmoltó, follow the (closed) track of Coll Sostrell. On reaching the ridge of the Puig de les Agulles, turn left as if heading for the summit. We pass a doline while descending gently until reaching where the track ends and a path continues towards the aforementioned hill. We follow it for about 25 metres and go straight into the left of the path. We will find the entrance among some bushes, quite covered, about 10 metres away in a N direction.