Flatlands is a neighborhood in the southeast part of the borough of Brooklyn in New York City. The current neighborhood borders are roughly defined by the Bay Ridge Branch to the north, Avenue U to the south, Ralph Avenue to the east, and Flatbush Avenue to the southwest.

Barren Island is a peninsula and former island on the southeast shore of Brooklyn in New York City. Located on Jamaica Bay, it was geographically part of the Outer Barrier island group on the South Shore of Long Island. The island was occupied by the Lenape Native Americans prior to the arrival of Dutch settlers in the 17th century. Its name is a corruption of Beeren Eylandt, the Dutch-language term for "Bears' Island".