http://wiki.openstreetmap.org/wiki/Category:Harbour
http://wiki.openstreetmap.org/wiki/Tag:man_made%3Dpier
http://wiki.openstreetmap.org/wiki/Tag:man_made%3Djetty
http://wiki.openstreetmap.org/wiki/Proposed_features/Jetties_and_piers
http://wiki.openstreetmap.org/wiki/Proposed_features/list#Proposed_Features_-_Waterway
http://wiki.openstreetmap.org/wiki/Tag:waterway%3Ddock
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HB: mooring=yes|no is to indicate that boats can tie up to it
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Chathams uploaded 3 May 2010 (HB).
Mainland uploaded 28 Dec 2010 in changeset 6782812 (HB).
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HB 22 Aug 2012: checked for new dataset, updated field names to match new shortened linz dataset values.