Last night do kawau , good anchorages including mansion house or bay further up where they used to do Furuno. Day before you could do Leigh harbour or Mangawhai but leave Mangawhai alone if easterly or low tide. Leigh is good anchorage and has pub with good food easy walk up road. 3rd night I’d be going into Tuts and getting a marina should one be available. Otherwise inside of poor knights but make sure take plenty of insect repellent as lot of mozzies, same as if venture out as far as Mokes these both good options if wind is low or from east . First  night (or second if do whangamumu),  I’d be going into whangaruru. Good place and can catch snapper in harbour at anchor. If 4 day trip would actually skip whangamumu and fish way down wider from Brett down to whangaruru on first day. Chance of marlin trolling,  or  dropping off there puka, and closer down round outside bland bay really good snapper and kings. Brett also be good fishing on your way out. Bland bay no good if easterly and swell pushing in. You can anchor in there as well but poor holding and lumpy compared to inside whangaruru… which I really love. Very fishy lots of options re anchoring in whangaruru. You can likely even pick up a mooring off beach inside bland bay on harbour side. As most won’t be there. And you can have a rum and catch few snapper safe and sound. Sounds like great trip. Hope weather plays ball for you.