Blue Lake (Tasman)
Rotomairewhenua / Blue Lake is a small lake in Nelson Lakes National Park, in the northern reaches of New Zealand's Southern Alps. Sacred to local Māori, it has the clearest natural fresh water in the world.
| Rotomairewhenua | |
|---|---|
| Blue Lake | |
Blue lake | |
Rotomairewhenua | |
| Location | Tasman Region, South Island |
| Coordinates | 42°3′30.6″S 172°39′25.6″E |
| Primary inflows | springs |
| Primary outflows | West Branch of the Sabine River |
| Basin countries | New Zealand |
| Surface area | 2.45 ha (6.1 acres) |
| Average depth | 7 m (23 ft) |
| Max. depth | 8.5 m (28 ft) |
| Water volume | 180,000 m3 (6,400,000 cu ft) |
| Residence time | <24 hours |
| Surface elevation | 1,180 m (3,870 ft) |
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