The Northern end (Whatuwhiwhi) of Doubtless Bay provides good anchorage in certain conditions. In Mangonui itself good anchorage can also be found turning left at the point (Butler Point?) under the headland opposite the wharf. Long and narrow channel but deep enough if you are a bit careful. Sorry I am not at the boat with my charts
and cannot remember names.
Matai Bay can be subject to ground swell but on the hard
left after you go through the headlands good anchorage can be found along there with care. We have stayed there and the main Matai Bay itself many times.
I have heard Ranganu Harbour on the northern side of Kari Kari Peninsula can also be ok but we have only ever visited the bays on the eastern side at the entrance during the day so cannot really qualify that.
Houhora is very sheltered, long narrow and extremely tidal so anchoring
can be a bit tricky in the basin. Moorings can usually be obtained by contacting the gamefishing club. Far North Radio vhf
channel 60? can assist you there.
Never been into Parengarenga harbour, shoals move and very difficult unless absolutely settled weather
and local knowledge.
At the top an alternative to Spirits Bay is Tom Bowling Bay. We spent a lovely new years eve in Tom Bowling once with a couple of other boats we were cruising with, when we found Spirits Bay to be a bit blustery with the best spots taken by fishing
The publications Pickmere's and Akarana Cruising guide provide good reference to these areas and more if you are able to purchase
, beg or borrow them.