Coast Guard Petty Officer 2nd Class Joseph Block, a diver with Regional Dive Locker East, tests out his sonar equipment before getting his feet wet at Jones Beach, Wantagh, N.Y., June 19, 2013. This machine increased efficiency and productivity by using less time and manpower while divers performed this search and recovery mission. (U.S. Coast Guard photo by Petty Officer 3rd Class Ali Flockerzi)