The Nissequogue River is a scenic waterway located on Long Island, New York. It flows approximately 10 miles from its source in the village of Smithtown to its mouth at Smithtown Bay in the Long Island Sound. The river is known for its natural beauty and diverse ecosystems, making it a popular spot for outdoor activities such as fishing, kayaking, and birdwatching. The river is surrounded by lush landscapes and is home to various wildlife species. It plays a vital role in the local environment, providing habitat for fish and birds. Conservation efforts are ongoing to protect the river's health and maintain its ecological balance.