New Zealand - Pacific Crossing Notes: A Sailor's Guide to the Coconut Milk Run - page 336

Most inbound yachts choose Opua in the Bay of Islands as their port of entry; others head
straight for Auckland or Marsden Cove (Whangarei). New Zealand requires an advance
notice of arrival for private yachts, but this is a simple matter of downloading and submit-
ting an online form [#1] . The form must be filed at least forty-eight hours before arrival, but
you can send it in weeks earlier and update your arrival date by email. Upon clearing in,
most passport holders are granted a free three-month visa, which can be extended for up
to nine months by mail (NZ$165 per family). Once such business is taken care of, the
travel-weary fleet slowly dissipates to sample their pick of the myriad choices on water or
land.