Would give a more comprehensive answer when I have more time.
Rarangi + Port underwood is a waste of time really. Quite good spearfishing in that area though. Might get a moki with right bait. More info later….
Keneperu. At this time of year, you might get Snapper and maybe Gunards. There is suppose to be schools of smaller size snapper in the Keneperu heads at the moment.
When I get time, I would PM you the location of a good little bay to fish.