180515-N-MY922-0006 ANNAPOLIS, Md. (May 15, 2018) A plebe crawls through a trench during the class of 2021 Sea Trials at the U.S. Naval Academy. Sea Trials is a capstone event for the freshman midshipmen, modeled after the Marine Corps' Crucible and the Navy's Battle Stations recruit programs. (U.S. Navy photo by Mass Communication Specialist 3rd Class Kaitlin Rowell/Released)