Petty Officer 3rd Class Dana Clidence holds a dayboard while Petty Officer 3rd Class Charles Blackburn drills the mounting holes prior to installation on the St. Johns River, Jan. 14, 2015. Coast Guard Aids to Navigation Team Jacksonville is responsible for inspecting and maintaining approximately 1,100 different aids to navigation between Ossabaw Island, Ga., and Pons De Leon, Fla. (U.S. Coast Guard photo by Petty Officer 1st Class Stephen Lehmann)