Hi,
so I played Kahuku golf course recently and I must say that this is one of the hidden golf diamonds in Hawaii. It is of great value (municipal) and plays alongside the pacific on the North Shore of Hawaii. It is only 9 holes, but playing 2 rounds is perfect and only takes around 3.5 hours. No golf carts available but you can rent a pull cart.
If you have not played it, you should definetelly try - here are som more
information.