U.S. Coast Guard Petty Officer 1st Class Jesse Robb and Petty Officer 2nd Class Liam Martens, two divers assigned to Coast Guard Regional Dive Locker Pacific in Honolulu, Hawaii, conduct a buoy chain assembly replacement offshore Port Allen, Hawaii, Dec. 9, 2025. Coast Guard divers provide essential underwater support taht directly impacts mariner safety, waterway efficiency and navigation reliability across the United States. (U.S. Coast Guard photo by Petty Officer 2nd Class Tyler Robertson)