Keywords: US Navy 110405-N-KK330-284 A Basic Crewman Training candidate takes a breath during a conditioning swim in San Diego Bay.jpg en SAN DIEGO April 5 2011 A Basic Crewman Training BCT candidate takes a breath during a conditioning swim in San Diego Bay BCT is the first phase of special warfare combatant-craft crewman SWCC training SWCCs operate and maintain the Navy's inventory of high performance boats used to support special operations missions worldwide U S Navy photo by Mass Communication Specialist 2nd Class Dominique M Lasco/Released 2011-04-05 110405-N-KK330-284 Navy http //www navy mil/view_image asp id 99565 U S Navy photo by Mass Communication Specialist 2nd Class Dominique M Lasco PD-USGov-Military-Navy Images from US Navy location San Diego California United States Navy training Diving half masks |