for 19 Hours

Amazing, but true – a 49 year-old woman stayed afloat off Maui (Hawaii)
for 19 hours after her canoe capsized. It is of course a story with a
good ending, but there is also kind of a funny twist. According to an
LA Times report, she used a water bag to help stay afloat, and she wrapped
her bathing suit top around her head to stay warm after dark. Whatever
floats your boat!

Read the full account here.