U.S. Coast Guard Petty Officer 1st Class Joshua Bredesen, an instructor at the Cold Water Ice Diving course, explains the ice diving exercise to the dive students on Ferrel Lake at Camp Ripley, Minnesota, Feb. 3, 2022. The two week course is considered a special training for ice diving after attending Coast Guard Diver A-School. (U.S. Coast Guard photo by Petty Officer 3rd Class Omar Faba)