Although the first explorers went there from Santa Pau, we believe that currently the most suitable route to access it is via Sant Feliu de Pallerols. Along the C-63 road from Sant Esteve d'en Bas to Sant Feliu de Pallerols, at kilometre 61.625 on the left a road branches off towards Sant Iscle de Colltort; after this small village we continue towards El Ventós. At Can Tià in the Coll Sa Rella we enter the private property of El Ventós, which currently (2021) can be crossed. After 775 metres, at the Coll de Can Barranc according to the ICGC or Coll dels 7 camins according to the local people, on the left we find a steep cemented uphill ramp of a few metres; once at the top we continue along the wider dirt track on the left, which first levels out and then descends a little until, after 700 metres, we reach Coll Ciuró (Aulina de la Creu), at which point we leave the vehicle. At this point two paths branch off; the one on the left, which we will ignore, heads to the Collet de Sant Jordi and the Grau de l'Escaler that climbs up from Santa Pau. We must follow the one on the right, which, almost level, takes us to the place known as l'Estret de Gibraltar; from here the path begins to descend towards the Torrent del Grau, and shortly before reaching it we find a deteriorated track that runs parallel to the Torrent del Grau; we follow it to the right, downstream. Here we have two options: following the track, we cross the torrent and along a narrow path it takes us to the track that runs along the bottom of the Fageda Fosca, parallel to the torrent. The other option is to follow the track until reaching the confluence with the aforementioned track that crosses the torrent, currently completely blurred. Once on the track that climbs along the right bank and parallel to the torrent, we will keep stepping over several trees in the middle of the track (a consequence of storm Gloria) for about 400 metres, until reaching a torrent larger than those we have been encountering (UTM ETRS89: 464585 – 4663011). This torrent, located on the left bank, we will ascend for 72 metres and 36 metres of elevation gain, where we will find the mouth of the cavity in the middle of the torrent. The route from the vehicle is 3.13 kilometres, with a drop of 86 metres. The track of the route is in the bibliography. Note: We have observed that the coordinates do not match the middle of the torrent on the ICGC map; we think the error is not the satellites'.