Gowanus Bay is a tidal estuary located in Brooklyn, New York. It connects to the Gowanus Canal, which has a history of industrial use and pollution. The bay is bordered by neighborhoods such as Carroll Gardens and Park Slope, making it a significant geographical feature in the area. The bay is part of the larger New York Harbor and plays a role in local ecology. Efforts have been made to clean up the bay and its surrounding areas, promoting environmental restoration and improving water quality for wildlife and recreational activities.