Petty Officer 1st Class Matthew Kamalo, operating as the dive supervisor, observes Petty Officer 2nd Class William Pettit as he enters Honolulu Harbor from the pier at Coast Guard Base Honolulu, July 30, 2015. Hard hat diving is an extended capability of the Regional Dive Locker Pacific crew that allows them to work underwater for longer periods of time and with increased safety, especially when using tools. (U.S. Coast Guard photo by Chief Petty Officer Sara Mooers.)