Rear Adm. Linda Fagan, 1st Coast Guard District commander, joins crews from the 1st District in cold water survival training in Boston Harbor, May 21, 2015. Cold water survival becomes a major focus in the 1st District as spring brings warmer air temperatures but the water remains dangerously cold. (U.S. Coast Guard photo by Petty Officer 3rd Class MyeongHi Clegg)