Guinness World Records - Officially Amazing

Longest time spent living underwater

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  • What: Longest time spent living underwater

  • Where:

Richard Presley (USA) spent 69 days 19 min in a module underwater at a lagoon in Key Largo, Florida, USA from 6 May to 14 July 1992. The test was carried out as part of a mission entitled Project Atlantis which had as its aim to explore the human factors of living in an undersea environment.

 

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