The Kaiwaka River is a river located in the Northland region of New Zealand. It flows through the Kaipara District and is known for its scenic beauty and natural surroundings. The river is a tributary of the Wairoa River, contributing to the local ecosystem and providing habitats for various wildlife. The river is popular for recreational activities such as fishing and kayaking. Its waters support a range of aquatic life, making it an important resource for both the environment and the local community. The Kaiwaka River plays a significant role in the cultural and natural heritage of the area.