You could try www.charterguide.co.nz
, which is a collection of private owners who charter thier boats. There are very tight restrictions on chartering boats in NZ which set standards for the boats and restrict the cruising limits. You can usually cruise
to Bay of islands and back but the other areas are limited to those cruising grounds. Tonga
ia well worth a sialing visit even if you have to hire from Mooring
. I have sailed there 6 times and just love it. No one really sails
Tonga/New Zealand for fun though. Its a hard slog with nothing between you and South Africa
or you and South America
at times. I can't imagine anyone renting
you a private yacht for that trip.
Particularly if you have kids
I would recommend chartering a yacht in Tonga, Whitsundays in Australia
and Hauraki /bay of islands. I recommend Fairwinds in the Bay of Islands. Perhaps combine that with a campervan tour of NZ.
The whitsundays are really lovely, beautiful anchorages
and great snorkelling. I am going there in 10 days time.