U.S. Army Reserve Officers' Training Corps cadets from Clemson University tread water during the combat water survival test, Jan. 28, 2016. (Staff Sgt. Ken Scar/U.S. Army photo) Learning to tread ...
Over a decade ago, the U.S. Coast Guard rescued three men in the Gulf of Mexico who had been fishing for grouper when their boat capsized. In order to survive, they had to tread water for 18 hours.