SURF SLAP Basic crewman training students crawl through the surf during their final training evolution on Naval Amphibious Base, Coronado, Calif., Aug. 20, 2008. The final training evolution, known as the “Tour,” is a three-day, two-night training session in which the students are tested physically and mentally on what they have learned during the seven-week program. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 189162-R-PGY55-187.jpg Photo Gallery