The Waiuku River is located in the Auckland region of New Zealand. It flows for approximately 20 kilometers, starting from the Auckland Region and emptying into the Manukau Harbour. The river is known for its scenic beauty and is surrounded by lush vegetation and wildlife. The river plays a significant role in the local ecosystem and is popular for recreational activities such as fishing, kayaking, and walking along its banks. The surrounding area is also home to various bird species, making it a great spot for birdwatching enthusiasts.