The Niantic River is a tidal river located in southeastern Connecticut, flowing between the towns of East Lyme and Niantic. It connects Long Island Sound to the Niantic Bay, serving as an important waterway for local ecosystems and recreational activities. The river is approximately 3.5 miles long and features a mix of salt and freshwater environments. It is home to various species of fish and wildlife, making it a popular spot for fishing, boating, and kayaking. The surrounding area also offers scenic views and opportunities for nature observation.