The Waikato River is the longest river in New Zealand, running for 425 kilometres through the North Island of New Zealand. As well as being a water and recreation resource, the river was historically a critical communications and transport link for the communities along it. The river flows through the centre of Hamilton where it is frequently used by rowers, kayakers and powered pleasure craft. Due to its size and large catchment area originating at Lake Taupo, the river also has a series of eight dams and nine hydro-electric power stations that generate electricity for the national grid. Management of the river and its assets are the responsibility of numerous key stakeholders including local councils, regional councils, power generators, the Department of Conservation and other special interest groups such as Fish and Game.