English: CORONADO, Calif. (June 22, 2003) - Basic Underwater Demolition/SEAL (BUD/S) students participate in Log PT (physical training) during Hell Week. Log PT is a demonstration not only of physical strength and endurance, but the importance of teamwork. The intense physical and mental conditioning it takes to become a SEAL begins at BUD/S training. During this six-month mind and body obstacle course, recruits are pushed to their physical and mental limits. Further development of the core values, Honor, Courage, Commitment and Integrity, is an essential component of SEAL training and one that is weaved throughout a SEAL’s career. First phase is the basic conditioning phase and is eight weeks in length. Physical training involves running, swimming, and calisthenics, all of which become increasingly difficult as the weeks progress. The fourth week of training, “Hell Week,” is days of continuous training with very little sleep. This week is designed to push students to their maximum capability both physically and mentally. The remaining weeks are spent in hydrographic reconnaissance and basic maritime training. U.S. Navy photo by Photographer's Mate 2nd Class Eric S. Logsdon (RELEASED)