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In page Great Barrier Island:

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Institutions and services are primarily provided by the Auckland Council, the local authority. Services and infrastructure like roads and the wharves at Tryphena and Whangaparapara are subsidised, with the island receiving about $4 in services for every $1 in rates.[1] The Port FitzRoy wharf is owned by the North Barrier Residents and Ratepayers Association.[citation needed]