U.S. Marine Corps Lance Cpl. David R. Hancarik, an aviation communication system technician assigned to Marine Air Control Group 28, catches his breath and adjusts his goggles during a 500 meter swim portion of the Water Survival Advanced Course held aboard Marine Corps Air station Cherry Point, N.C., Aug. 4, 2014. Students were tested on their ability to rescue distressed Marines while in the water simulating real life scenarios. (U.S. Marine Corps photo by Pfc. Koby I. Saunders/Released)