| Cascade River | |
|---|---|
 Route of the Cascade River | |
&sq=Envato&lang=en&file=File:NZ-SI_plain_map.png)  Mouth of the Cascade River &sq=Envato&lang=en&file=File:New_Zealand_(relief_map).png)  Cascade River (New Zealand) (New Zealand) | |
| Native name | Tahutahi (Māori) |
| Location | |
| Country | New Zealand |
| Region | West Coast Region |
| District | Westland |
| Physical characteristics | |
| Source | Confluence of Limbo Stream and Retreat Creek |
| • coordinates | 44°02′36″S 169°13′09″E / 44.0434°S 169.2193°E |
| Mouth | |
• location | Haast River |
• coordinates | 44°01′32″S 169°21′43″E / 44.02555°S 169.36194°E |
• elevation | 0 m (0 ft) |
| Length | 67 kilometres (42 mi) |
| Basin features | |
| Progression | Cascade River → Tasman Sea |
| Tributaries | |
| • left | Barrington Creek, Granite Creek, Saddle Creek, Kappa Creek, Delta Creek, Gamma Creek, Beta Creek, Colin Creek, Eel Creek, Barn River |
| • right | Holland Creek, Malcolm Creek, Arcade Creek, Captains Creek, Falls Creek, McKay Creek, Woodhen Creek, Martyr River, The Old Man |
The Cascade River (Māori: Tahutahi) is a river of the South Island of New Zealand. It flows north for 30 kilometres (19 mi) from its source in Mount Aspiring National Park in the Southern Alps, forming a deep valley between the Olivine Range and Red Hills Range. From the end of this valley it turns west to cross a low-lying swampy floodplain before entering the Tasman Sea close to Cascade Point, a headland halfway between Big Bay and Jackson Bay.