130514-N-MG658-437 ANNAPOLIS, Md. (May 14, 2013) Midshipmen from the Naval Academy Class of 2016 conduct early morning physical training with an inflatable raft on the shore of the Severn River as part of the U.s. Naval Academy Sea Trials. Based on the Navy's Battle Stations and the Marine Corps' Crucible, Sea Trials is the capstone training evolution for the Naval Academy freshmen class. The plebes navigate physical and mental challenges, ranging from obstacle courses, long-distance group runs, damage control scenarios, and water training. (U.S. Navy photo by Mass Communication Specialist 2nd Class Todd Frantom/Released)