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.  http://www.nztb.govt.nz/

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B5.1.2  Maps

Tourist Maps (ones for each town with the sights marked etc) can
be obtained from the Visitor Information Centre of that area. 
Usually these are free.

Road Maps can be purchased from the Visitor Information Centre, the 
Automobile Association shop, Bookshops and Petrol Stations.  The
AA Shop and big bookshops will have a good selection.  Petrol 
stations tend to stock regional maps only.  

For maps on walking tracks or other geographical maps of NZ can be
obtained from the nearest branch of the Land Information New Zealand 
(was the Department of Survey and Land Information), or the Department 
of Conservation.  Visitor Information, Bookshops and the AA are likely 
to have the 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...