The Parramatta River is a significant waterway located in New South Wales, Australia. It flows approximately 23 kilometers from its source in the Blue Mountains to its confluence with the Sydney Harbour. The river is an important part of the local ecosystem and has historical significance for the Darug people, the traditional custodians of the land. The river is surrounded by various parks and recreational areas, making it a popular spot for activities such as walking, cycling, and kayaking. Several suburbs, including Parramatta and Ryde, are situated along its banks, contributing to the river's role in urban development and community life.