As
@grantwiscour said, there aren’t any “dive resorts” like you might find in the Caribbean or Coral Triangle.
While Oahu does have some great diving, it’s not really a “dive destination”. People
typically come to Oahu for the above water activities, and then maybe take a day or two off for some diving. There are dive shops that will pick you up at your hotel and drive you to the dive boat in the marina but that’s as close as you will get.
Unfortunately, in November, the North Shore swell is usually already roaring so that knocks out many of the best shore and reef sites (Shark’s cove, Three Tables, Haleiwa trench, Waimea). You’ll likely only be able to dive the south or maybe the west coast which are predominantly boat dives.
The south coast has four or five great wrecks, and a half dozen other decent ones. West side has one great wreck.
For reefs, south shore has maybe 4 really worthwhile dives and the rest are just “okay”, but it’s nothing like you’d get on the north shore or on another Hawaiian island.
You often don’t get a say in which sites are being done each day by the op so it’s hit or miss. I live here, and love diving here, but this wouldn’t be the first place I’d pick to do a week of solid diving.
@Luca Brasi, what made you choose Oahu for a dive week?