| Forrestdale Lake | |
|---|---|
 | |
  Forrestdale Lake | |
| Location | Perth, Western Australia |
| Coordinates | 32°09′30″S 115°56′16″E / 32.15833°S 115.93778°E |
| Type | Brackish seasonal groundwater |
| Primary outflows | groundwater; evaporation |
| Basin countries | Australia |
| Designation | Forrestdale Lake Nature Reserve; Forrestdale and Thomsons Lakes Ramsar Site |
| Max. length | 1.6 km (0.99 mi) |
| Max. width | 1.3 km (0.81 mi) |
| Surface area | 2.45 km2 (0.95 sq mi) |
| Surface elevation | 22 m (72 ft) |
 | |
Forrestdale Lake Nature Reserve is a lake nature reserve around Forrestdale Lake in the City of Armadale, Western Australia, approximately 25 kilometres (16 mi) south of the central business district of Perth, the state capital, and on the southern fringes of the Perth metropolitan area. It lies immediately south of the suburb of Forrestdale, and 8 kilometres (5.0 mi) south-east of Jandakot Airport. It is a still largely natural wetland, with some adjoining native vegetation, surrounded by land developed for housing and agriculture, that regularly supports large numbers of shorebirds and other waterbirds.