SAN FRANCISCO - Crewmembers from Coast Guard Station San Francisco train to become surface rescue swimmers in order to qualify as a Coast Guard boat crewmember, Thursday, Feb. 19, 2009. All personnel serving at a small boat station must qualify as a boat crewmember, a process that includes first aid and cardio-pulmonary resuscitation training, deck operations, and rescue techniques. U.S. Coast Guard photo/Petty Officer 3rd Class Pamela J. Manns