SAVANNAH, Ga. - A Coast Guard aviation survival technician, more commonly known in the Coast Guard as a rescue swimmer participates in poolside rescue training at Hunter Army Airfield in Savannah March 15, 2011. Rescue swimmers must maintain peak physical strength and technical proficiency daily in order to perform the rigorous duty of saving lives at sea. U.S. Coast Guard photo by Petty Officer 1st Class Christopher Evanson.