The South Street Seaport is a historic area in the New York City borough of Manhattan, centered where Fulton Street meets the East River, within the Financial District of Lower Manhattan. The Seaport is a designated historic district. It is part of Manhattan Community Board 1 in Lower Manhattan, and is next to the East River to the southeast and the Tw…The South Street Seaport is a historic area in the New York City borough of Manhattan, centered where Fulton Street meets the East River, within the Financial District of Lower Manhattan. The Seaport is a designated historic district. It is part of Manhattan Community Board 1 in Lower Manhattan, and is next to the East River to the southeast and the Two Bridges neighborhood to the northeast.