Lake, south-central South Island , New Zealand.
The S-shaped lake measures 48 mi (77 km) by 3 mi (5 km) and has an area of 113 sq mi (293 sq km) and a maximum depth of 1,240 ft (378 m). It receives the Dart, Rees, Greenstone, and Von rivers and empties by the Kawarau River, a tributary of the Clutha River .