Lake Rotoroa (Tasman)
|Location||Nelson Lakes National Park, Tasman Region, South Island|
|Primary inflows||D'Urville, Sabine|
|Primary outflows||Gowan River|
|Basin countries||New Zealand|
|Max. length||14.2 km (8.8 mi)|
|Max. depth||145 m (476 ft)|
The greatest depth is 145 metres, and it has an area of just under 23.5KM. The lake is completely surrounded by beech forest. Rotoroa is a small community at the base of the lake. The Gowan River flows out of the lake at this point, thus making the lake one of the sources of the Buller River system.
A track follows the northeast side of the lake and a water taxi travels the length of the lake to ferry trampers to and from the tracks at the head of the lake.
The word rotoroa is Māori for long lake.