The Waiau River is located in the Southland region of New Zealand. It flows approximately 100 kilometers from the Southern Alps to the Foveaux Strait, providing a vital waterway for the surrounding ecosystems and communities. The river is known for its scenic beauty, featuring lush landscapes and diverse wildlife. The Waiau River is popular for various recreational activities, including fishing, kayaking, and hiking along its banks. It is also significant for its cultural importance to the local Māori communities, who have historical ties to the river and its surrounding areas.