Here are some audio files I recorded of Paul Everett of ULSA on a recent trip over here. It was recorded in a pub, with Alan and Dave Brook and John and Carol Whalley so please excuse the background noise!!
https://youtu.be/QyB0_jmAsV8      (Caving in the PSM)
https://youtu.be/-T4oanwvnMc      (Caving with Dave 'Pooh' Yeandle in Pippikin)
https://youtu.be/V5gPdcTx2Uc      (Caving in PNG)

Here's the PSM interview
https://youtu.be/E3IPJKm-QOM