First Phase Basic Underwater Demolition/SEALs (BUD/S) candidates use teamwork to perform physical training exercises with a 600 pound log at Naval Amphibious Base Coronado on April 6, 2011. Log physical training exercises are one of many physically demanding evolutions that are part of first phase training at BUD/S. The Navy SEALs are the maritime component of U.S. Special Operations Forces and are trained to conduct a variety of operations from the sea, air and land.