The Waiau River is located in the South Island of New Zealand. It flows through the Waiau Valley and is known for its scenic beauty, surrounded by mountains and lush landscapes. The river is approximately 100 kilometers long and eventually empties into Te Waewae Bay. The Waiau River is popular for various recreational activities, including fishing, kayaking, and hiking along its banks. It is also significant for its ecological diversity, supporting various fish species and wildlife. The river plays an important role in the local ecosystem and is a cherished natural resource for the surrounding communities.