Newark Bay is a tidal estuary located in northeastern New Jersey, bordered by the cities of Newark, Elizabeth, and Bayonne. It connects to the Upper New York Bay through the Kill Van Kull and is part of the larger Hudson River estuary system. The bay plays a significant role in local ecology and serves as a habitat for various fish and bird species. The bay is also an important industrial area, with several shipping terminals and ports, including the Port of Newark. This makes it a vital hub for commerce and transportation in the region, contributing to the economy of New Jersey and the greater New York City metropolitan area.