South Ferry was a ferry landing on the Brooklyn side of the East River, at the foot of Atlantic Avenue at the border of the neighborhoods of Cobble Hill and Brooklyn Heights. The ferry known as South Ferry traveled to South Ferry, Manhattan. The Long Island Rail Road's original main line through the Cobble Hill Tunnel, later the Atlantic Avenue Railroad's streetcar line, served South Ferry. In the 20th and early 21st centuries, the site served cargo as Brooklyn Piers 5 and 6.