140213-N-CG436-031 PANAMA CITY, Fla. (Feb. 13, 2014) Students at Naval Diving and Salvage Training Center (NDSTC) conduct training operations in the center's 40-foot-deep Aquatic Training Facility. NDSTC, the largest diving facility in the world, trains more than 1,200 military divers from every branch of service each year. (U.S. Navy photo by Mass Communication Specialist 2nd Class Michael Scichilone)