| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manganuiohou River | Waiau River | 19,000 | -38.8442250000 | 176.9080277778 | Map | ||||||
| Waikaretāheke River |  | Waiau River | -38.9240470000 | 177.2612250000 | Map |