| Perth River | |
|---|---|
 Upper Reaches of the Perth River | |
| Location | |
| District | Westland District |
| Region | West Coast Region |
| Country | New Zealand |
| Physical characteristics | |
| Source | Perth Glacier |
| Mouth | |
• location | Whataroa River |
• coordinates | 43°20′S 170°27′E / 43.333°S 170.450°E |
| Basin features | |
| Tributaries | |
| • left | Barlow River |
The Perth River is a river in the Southern Alps in the West Coast region of New Zealand's South Island. Its source is in terrace icefields north of the Rangitata Divide and is joined by multiple tributaries, including a creek from Abel Lake. It features a number of rapids and passes through two gorges before meeting the Whataroa River. The river is largely inaccessible, but recently, an adventure tourism company has begun offering "heli-rafting" on the river: whitewater rafters are flown in by helicopter to raft the river.