Twelve volunteers victims tread water with lifejackets while waiting for rescue off popular South Padre Island, Texas, beaches Wednesday, Aug. 28, 2013. More than 50 people in three agencies responded to the mock disaster. The Coast Guard, City of South Padre Island Beach Patrol and Cameron County Beach Patrol organized the exercise to evaluate communication and coordination between the agencies as they managed recovery, triage and transportation for all the victims at one time. (U.S. Coast Guard photo)