| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubtful River (New Zealand) | Boyle River | 13,000 | -42.5500000000 | 172.3500000000 | Map | ||||||
| Nina River |  | Boyle River | 18,000 | -42.5166666667 | 172.3833333333 | Map |