Hidden Depths of Mexico Sid Perou Video Collection

This video, with a running time of about 55 minutes, is a DVD-R. It will play on all DVD players except the very oldest. From the box: "Toward the end of 1983, a group of English cavers mounted an expedition to Chiapas, in southern Mexico. It seemed to be an area with an enormous potential for deep cave systems. But realising that potential would prove to be frustrating. Persistence, however, would finally bring results, but at a cost to their health." Originally shot on 16mm film by famous British cave-film maker Sid Perou, it is part of his Realm of Darkness series.