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The harbour and catchment plan for Whitianga/Mercury Bay will cover from Waitaia Bay to Sailors Grave, including land area, and Whitianga Harbour and Purangi Estuary.
The land area is about 54,000 hectares and includes 198 kilometres of streams and rivers. It’s made up of 11 sub-catchments:
Of the land area:
Whitianga Harbour is about 1690 hectares, has about 74 kilometres of harbour margins and 141 kilometres of coastline.