U.S. Navy Construction Mechanic 2nd Class Tristan de Delva, assigned to Underwater Construction Team (UCT) 2, enters the water for underwater cutting operations on “Big Blue” mooring system in Apra Harbor, Guam, Nov 21, 2017. UCT 2 provides construction, inspection, maintenance, and repair of underwater and waterfront facilities in support of the Pacific Fleet. (U.S. Navy photo by Mass Communication Specialist 1st Class Arthurgwain L. Marquez)

Photo by: Petty Officer 1st Class Arthurgw |  VIRIN: 171121-N-CW570-0156.jpg