A group of 10 University of Southern California medical students huddle together in the water off Marina Del Rey as a Coast Guard HH-65D Dolphin helicopter hovers overhead. The students were learning about water survival and the affects of hypothermia on the body with special help from the crews of the Coast Guard Cutter Halibut and Coast Guard Air Station Los Angeles. (U.S. Coast Guard photograph by Petty Officer 1st Class Adam Eggers)