Petty Officer 3rd Class Mallory Velez rolls away from the edge of the ice as part of a self-rescue technique during training on the ice of the Black River in Port Huron, Michigan, Feb. 18, 2017. Other members of the Coast Guard Cutter Hollyhock, a 225-foot buoy tender homeported in Port Huron were also conducting ice-rescue training. (U.S. Coast Guard by Coast Guard Cutter Hollyhock)