Petty Officer 2nd Class Ryan Pierce, an aviation survival technician at Coast Guard Sector San Diego, fires off a flare during a search and rescue demonstration in Glorietta Bay, in Coronado Calif., July 4, 2015. During the demonstration, Pierce and an MH-60 Jayhawk helicopter crew simulated various rescue techniques during search and rescue cases. (U.S. Coast Guard photo by Petty Officer 1st Class Rob Simpson)