Water in New Zealand and are of varying types and origins. Many of the lakes in the central North Island area are volcanic crater lakes, while the majority of the lakes near the Southern Alps were carved by glaciers. Hydroelectric reservoirs are common in South Canterbury, Central Otago and along the Waikato River. Over 180,000 kilometres of rivers has been mapped in New Zealand, the longest being the Waikato River with a length of 425 kilometres and the largest river by volume is the Clutha River with a mean discharge of 533 cubic metres per second. New Zealand has many notable waterfalls, some of
Little River (New Zealand) Little River (New Zealand) The Little River is a tributary of Rakaia River, about long, in the Canterbury Plains of New Zealand's South Island. It rises on the Mount Hutt and enters the Rakaia above sea level. Little River is also the name of a short river, roughly , on Stewart Island, about a 2-hour walk from Oban. Wairewa marae, a "marae" (tribal meeting ground) of Ngāi Tahu and its Wairewa Rūnanga branch, is located at Little River. It includes Te Mako "wharenui" (meeting house). MainPower’s Cleardale power station, was built in 2010. It takes up to /second through a