Petty Officer 2nd Class Jeffrey Esser and Petty Officer 2nd Class Nicholi Zapara, both divers with Regional Dive Locker Pacific, inspect each other's equipment before diving to 40 feet to refloat a sunken buoy in Port Allen Harbor, Kauai, Dec. 3, 2015. Divers routinely work with USCGC Walnut to maintain the 393 floating navigation aids located throughout the Pacific. (U.S. Coast Guard photo by Petty officer 3rd Class Melissa E. McKenzie/Released)