Coast Guard Petty Officer 2nd Class Garett Brada, a diver deployed aboard the U.S. Coast Guard Cutter Polar Star, checks his dive gauges before a cold water ice dive off of McMurdo Station, Jan. 19, 2017.
Divers bring the option of sub-surface support for the cutter's command, in the event repairs or inspections are needed.
U.S. Coast Guard photo by Chief Petty Officer David Mosley.
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