Don't go to Oahu
"If you're expecting paradise, Oahu is not the place for you. Now don't get me wrong, Oahu is a very nice place, but you'll be disappointed. If you want scenery in a quiet place, go to Kauai. If you want scenery and adventure, hit Maui. If you want scenery in a large place, check out the Big Island. Oahu is a big city. While there are nice things to see there, it's not worth the hustle and bustle of the place.