A diver from a joint U.S. Coast Guard and U.S. Navy team treads in 30-degree Fahrenheit water during a training dive in the Beaufort Sea, Aug. 11, 2023. The U.S. Coast Guard Cutter Healy (WAGB 20) is underway in the Beaufort Sea conducting science missions. (Coast Guard photo by Petty Officer 3rd Class Briana Carter)