One of the most upsetting group diving catastrophes we have yet to cover on our channel will be featured in today's film. Nine divers went diving in The Shaft, a shallow-entry cave, where many of them ran into problems as they dove deeper than they intended and battled to surface.
On farmland on the eastern part of Allendale, some kilometers south of Mount Gambier, Australia, a cave was found in Thompson's Paddock as early as 1938. The cave is called "The Shaft." When a horse slipped over a 1-foot-wide hole while grazing in the field, it was discovered (0.3 m). The surface of this recently discovered hole has to be enlarged to around 3.3 ft (1 m) in diameter for the purpose of further exploration. Until divers started exploring it, it was unknown that it was an entrance to a bigger underground cavern. In the middle of the 1960s, a local diver visited this field, and much to his utter surprise, when he descended the tiny hole, he arrived at a vast lake cave with a depth of around 56 feet (17 m). He started to dive down, and eventually got to a depth of roughly 69 feet (21 m).
