U.S. Marine recruits with Oscar Company, 4th Recruit Training Battalion, Recruit Training Regiment, Marine Corps Recruit Depot Parris Island, climb up a ladder to jump off of a 10-foot tower into the combat training pool simulating abandoning a ship, aboard Marine Corps Recruit Depot Parris Island, S.C., Feb. 4, 2013. In order to graduate from Marine Corps recruit training, recruits must complete swim qualifications. (U.S. Marine Corps photo by Cpl. Aneshea S. Yee/Released)