| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mararoa River |  | Waiau River | 200,000 | -45.5666666667 | 167.6000000000 | Map | |||||
| Orauea River | Waiau River | -46.1333333333 | 167.7000000000 | Map |