Lance Cpl. Amado Landa, an administration clerk with School of Infantry West Hawaii Detachment, practices a sidekick with resistance fins in the water during Aquatics Maximum Power-Intense Training held at Marine Corps Base Hawaii's main pool, May 8, 2013. Landa, one of more than 55 Marines who were trained in AMP-IT, said the fins made him work harder to keep his balance. (U.S. Marine Corps photo by Christine Cabalo)
Christine Cabalo
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