February and 23 February 1986. He was continuously submerged for 212.5 hours. The record was ratified by the Guinness Book of Records. See also Notes References Further reading Cousteau J.Y. (1953) Le Monde du Silence, translated as The Silent World, National Geographic (2004) Ellerby D. (2002) The Diving Manual, British Sub-Aqua Club (BSAC) Dive Leading, BSAC The Club 1953–2003, BSAC External links Diving equipment configurations Recreational diving Underwater diving procedures Outdoor recreation