Come over to the east side.

Back to the op's original question

I have no idea whether this is your cup of tea, but look in the Friday, December 28, edition of the West Hawaii Times in the religion section. There will be listings of churches which say they have lunch or "refreshments" after worship for Sunday, December 30. Be advised that in Hawaii there is no such thing as "light refreshments," and odds are you can make a meal out of whatever is served and get to be with "real local" folks. You could ask some of them where you might go to see and hear fireworks; I'm betting at least one of them will invite you to their home.