Night from the new wharf is good for Moki, use small hooks, 2/0 are good but they can take larger ones. Small piece of shrimp, mussel ect for bait. I beleive Moki feed more over high tide but I have no evidence to prove it. All the terakihi I seen from Kaikoura and jurveniles, none longer then 15cm.
The beaches north of the Clarence river and Kekerengu are good for Sevengillers and large tope sharks. They fish best a couple of hours before and after high tide. Caught a massive skate just south of Kekerengu once.