Avenc del Biciclista

Following the track that goes from les Arenes to the farmhouse of Can Cadafalch, a few metres before reaching the two pillars of the entrance to the farmhouse property, we will find a torrent on the right that comes down from the turó d'Aguilar. Right beside the pillars a path made by the “motos” starts and climbs until it crosses a track. We will follow this track uphill, along the left side of the torrent. The track crosses a second torrent and follows it up along its right bank. A few metres further on the track joins the torrent forming a small esplanade; the track still follows the torrent a little further up along its right side, joining the torrent again. At this point another track starts on the other side of the torrent; it is very abandoned and we will follow it for not many metres until we find the mouth of the pit on the right.