CONCENTRATION A Plebe crosses a rope on an endurance course during Sea Trials at the U.S. Naval Academy, Annapolis, Md., May 12, 2009. Sea Trials is the capstone training evolution for the academy's freshmen class. The plebes navigate physical and mental challenges, ranging from obstacle courses, long-distance group runs, damage control scenarios and water training. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 451313-U-EWI18-615.jpg Photo Gallery