Lynne Cox did a one mile swim (25 minutes) in Antartic waters (32°F) in 2003: https://www.cbsnews.com/news/swimming-to-antarctica-12-02-2003/ https://www.cbsne

Lynne Cox did a one mile swim (25 minutes) in Antartic waters (32°F) in 2003: https://www.cbsnews.com/news/swimming-to-antarctica-12-02-2003/ https://www.cbsnews.com/news/swimming-to-antarctica-12-02-20... She swam in even colder Arctic waters (26.6°F) for 5m26s in 2007: http://www.espn.com/espn/feature/story/_/page/Lynne-Cox/lynne-cox-story http://www.espn.com/espn/feature/story/_/page/Lynne-Cox/lynn... Her book is a fun read: https://www.amazon.com/Swimming-Antarctica-Long-Distance-Swimmer-Awards/dp/0375415076 https://www.amazon.com/Swimming-Antarctica-Long-Distance-Swi...