Deon Dreyer

Dreyer's father, Theo (who owns a business that sells and services two-way radios) and mother, Marie, raised him in the town of Vereeniging, about 35 miles south of Johannesburg. Dreyer designed "obscenely loud car stereos", had a passion for diving, and loved adventure, (e.g., hunting, racing a souped-up car, and motorcycling). Outside Magazines Tim Zimmerman reports: ==Death==

Dreyer drowned on 17 December 1994, aged 20, during a practice dive. He was helping a team, assembled by Nuno Gomes, set up conditions for a deep technical dive scheduled to take place later that week. According to first-hand accounts from those diving with him, Dreyer was lost on ascent around from the surface. They conjectured he had probably lost consciousness either because of oxygen toxicity or hypercapnia induced by the high work-rate of breathing at depth. Two weeks after Dreyer's death, Theo hired a small, remotely operated sub used by the De Beers mining company. It found Dreyer's dive helmet on the sinkhole floor, but there was no sign of his body. ==Commemoration==

Dreyer's parents erected a plaque on a rock wall above the Bushman's Hole entry pool, in memory of their son. ==Recovery of body==

Ten years later, in October 2004, the Australian cave diver Dave Shaw discovered Dreyer's body in the cave at a depth of . On 8 January 2005, Shaw tried to recover the body but died in the attempt. Shaw's close friend and support diver, Don Shirley, nearly died and sustained permanent damage that impaired his balance. ==See also==