|Occupation||technical diver & Instructor|
Mark Ellyatt held the record for the world's deepest dive reaching 313m in 2003 35 miles off the coast of Phuket, Thailand after a dive lasting 7 hours, beating John Bennett's previous 308m record. - Ellyatt's dive computer reading from the dive was made available.
In 2003, during a previous extreme deep diving attempt Ellyatt suffered extreme isobaric counterdiffusion (ICD) during decompression, and only survived the dive by virtue of being helped by his support divers. ICD is a common malady in extreme deep diving, and nearly claimed the life of John Bennett in his world record setting deep dive. Don Shirley also suffered extremely serious ICD during the dive which killed Dave Shaw.
Ellyatt assisted the local diver Christian Francis in discovering the wreck of the battleship HMS Victoria in 2004, 150m underwater off Tripoli, Lebanon. The wreck sits vertically on its bow, partly buried in the seabed - described as being its 'own underwater tombstone'.
Mark Ellyat has written about his early diving experiences and later record attempts in his book Ocean Gladiator, published in 2005.
- Ellyatt, M. "Solo 313m Depth Record". Retrieved 2008-07-23.
- "A journey to 308 Meters". Archived from the original on 2008-07-20. Retrieved 2008-07-23.
- "Scuba Records - deep records". Retrieved 2010-04-29.
- Smith, Alithea (8 August 2006). "Mark Ellyatt's Ocean Gladiator". Archived from the original on 24 July 2011. Retrieved 20 June 2011.
- Diving-News.com. "HMS Victoria's Secret - Lebanon". Archived from the original on 6 October 2008. Retrieved 2008-07-23.
- Nicholas Blanford. "Divers discover British ship wreck after 111 years". The Daily Star Newspaper - Lebanon.
- Ellyatt, M. "OCEAN GLADIATOR: Battles beneath the ocean". Retrieved 2008-07-23.
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