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Deon Dreyer (7 August 1974 – 17 December 1994) was a South African recreational scuba diver who died in Bushman's Hole in South Africa. Cave diver David Shaw died more than 10 years later while attempting to retrieve Dreyer's body.
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 Magazine's Tim Zimmerman reports:
Deon had logged about 200 dives when he was invited to join some South Africa Cave Diving Association divers at Bushman's Hole over the 1994 Christmas break. They planned a descent to 492 feet and asked Deon to dive support. He was thrilled. Two weeks before the expedition, Deon's grandfather passed away. Sitting around a barbecue with his family one night, Deon spoke with boyish hubris. "He said if he had a choice of how to go out in life, he'd like to go out diving," recalls his father, Theo, 51.
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 50 metres (160 ft) 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.
Dreyer's parents erected a plaque on a rock wall above the Bushman's Hole entry pool, in memory of their son. In Phillip Finch's book Diving into Darkness: A True Story of Death and Survival, it was suggested that one of the reasons Dreyer's death created such an impression on the cave diving community was because of the plaque. The bodies of most other divers who die, even whilst cave diving, are recovered. However, for many years it was assumed Dreyer's body would never be recovered from the cave because it was simply too deep, but the plaque was a continual reminder to cave divers that his body lay within.
Recovery of body
Ten years later, in October 2004, renowned cave diver David Shaw discovered Dreyer's body in the cave at a depth of 272 metres (892 ft). On 8 January 2005, Shaw tried to recover the body, but died in the attempt. Shaw's close friend and support diver, Don Shirley, also nearly died and was left with permanent damage that has impaired his balance. On 12 January 2005, while others were recovering Shaw's technical equipment, they discovered the bodies of both Dreyer and Shaw had floated up close to the surface. Both bodies were then recovered.
- Cave diving – Underwater diving in water-filled caves
- Deep diving – Underwater diving to a depth beyond the norm accepted by the associated community
- Sheck Exley – American cave and deep diving pioneer and record breaker
- Nuno Gomes – South African diver and holder of scuba depth record
- Dave Shaw – Australian technical diver and former record holder killed in a diving incident
- Technical diving – Extended scope recreational diving
- Zimmermann, Tim (1 August 2005). "Raising the Dead". Outside. Archived from the original on 12 July 2021. Retrieved 12 July 2021.
- "To Boldly Go". Australian Story. Australian Broadcasting Corporation. 16 May 2005.
- Finch, Phillip (2008). Diving into Darkness: A True Story of Death and Survival. New York: St. Martin's Press. pp. 113–114. ISBN 0-312-38394-0. LCCN 2008024271.
- DeWitt, Julia (10 January 2014). "Episode 515: Good Guys, Act 3". This American Life. Retrieved 4 January 2019.
- Washington, Glynn (31 October 2014). "Where No One Should Go". Snap Judgment. NPR.