U.S. Coast Guard instructors lead the students of the Cold Water Ice Diving [CWID] course through the process of diving under the ice on Lake Ferrell, Feb. 3, 2022. Students dress, conduct communication checks, enter the water, conduct suit and tank checks, submerge, return to surface, and exit the water under the guidance of the Coast Guard instructors. The CWID prepares military divers to execute missions in cold water and ice environments. (U.S. Coast Guard Video by Petty Officer 3rd Class Gregory Schell)
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