U.S. Coast Guard Petty Officer 3rd Class Adolfo Hernandez, a Machinery Technician aboard Coast Guard Cutter Spar, sounds a fuel tank on the buoy deck while underway in the St Lawrence River, March 23, 2022. Spar and her crew are traveling to Duluth, Minn. after a year-long maintenance period in Baltimore. (U.S. Coast Guard photo by Petty Officer 3rd Class Gregory Schell)