In reply to Wood for Trees:
It's as good as NZ trad rock gets, very solid granite. One of my favourite venues, great climbing.
The gear is generally pretty good: you could get away with a slimmed down rack, you just might need to climb within your grade and avoid some routes.
How long is your window there though? Weather or high swell can stop play often. The very best conditions are after a few days rain with low swell: washes away the salt residue off the lower routes.
My understanding is there's plenty of new routes potential, but it's a bush slog to find them and you probably need to have a good idea of where to look.
There's also a lot of interest in Bullock creek on the way, on the offshore side: v different climbing, mostly sport limestone, but apparently lots of potential.