Porth Yr Ogof - Inside The Cave

Inside The Cave

Entry to Porth yr Ogof is most often made through the wide Main Entrance, either using a dry ledge on the left or by wading through the knee-deep river to the centre and right. Cavers are presented various challenges inside, including The Wormhole (a curving crawl tube on the right wall of the Main Entrance), The Letterbox (a rectangular space in the passage) and The Creek, home to Death Ledge on its nearside wall. There are also two features named the Washing Machine - both feature large expanses of water.

Porth yr Ogof is now uncommercialised, and is also invaluable as a learning resource for caving. Along with the other attractions in the cave, two short potholes are easily accessible by amateur potholers. The cave is generally wet, however; White Horse Pool, named so because of the shape of the calcite deposit on the back wall, is several metres in depth despite the shallowness of the edges, and there are many sumps (completely flooded passageways), the majority of which exist in the portions of the cave north of the Trademan's Entrance.