Photo by Petty Officer 3rd Class Gregory Schell | U.S. Coast Guard Great Lakes District | 02.02.2022
U.S. Coast Guard Petty Officer 2nd Class Ryan McManus tests the ice thickness on Lake Ferrell, Minn., Feb. 2, 2022. The students and instructors prepare the dive site for under-the-ice instruction. (U.S. Coast Guard Photo by Petty Officer 3rd Class Gregory Schell)...
