WAVE RIDERS U.S. Navy sailors enrolled in the Basic Underwater Demolition, a SEAL training course, participate in surf passage at Naval Amphibious Base Coronado, Calif., Feb. 16, 2010. Surf passage is one of many physical exercises conducted as part of the first phase of the training. SHARE IMAGE: Download Image: Full Size (0.07 MB) Photo By: VIRIN: 407068-D-QDS27-971.jpg Photo Gallery