B5.1.1  Tourism Board

There is one.  There is also the Visitor Information Network which has
conspicuous black, green, and white signs including a large italic 'i' at
the left hand end, throughout NZ cities/towns.

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B5.1.2  Maps

See the nearest branch of the Department of Survey and Land Information, or
Department of Conservation.  Bookshops are likely to have maps too.

It pays to carry a light tent and be prepared to camp if travelling in the
more popular places during the summer.  Watch out for Giardia.  Boil
drinking water in areas known to be infected (ask at a DoC office) and
FOLLOW the rules for waste disposal; we don't want it to spread...