It is a 128-mile-long lim
It is a 128-mile-long limestone archipelago, contained mostly within Monroe County.  The northernmost is called Virginia; the southernmost Loggerhead.  In between, Garden is home to a large lighthouse, the Islamorada World War I monument is on Upper Matecume, and the undersea John Pennekamp Coral Reef State Park is on Largo.  FTP name this site of the world's longest over-water highway, the Gulf of Mexico island chain just south of Miami.
It is a 128-mile-long limestone archipelago, contained mostly within Monroe County.  
the Florida Keys