The only corals found in Hawaii are cauliflower coral and mostly red or pink. On Oahu there isn't a dive spot that really makes you go "what was incredible" or "so many nice corals and colors".. Maui or molakai is the place to go for reefs. Kuaui is nice to. Oahu really is terrible for coral. there are some beautiful fish though. So Pactrop is right in saying you will never find a nice reef. Go to tonga, fiji, or somewhere over in that area if you like corals
