You will be able to see the view of Waikiki Beach from the lookout. Sunset and night views are fantastic!
A Hawaiian luau is a traditional Polynesian feast and celebration featuring music, hula dancing, and fire-knife performance. You should definitely do a Luau once in your life! We went there for our first Luau, and it was wonderful! Of course, there are plenty of other Luaus to choose from in Hawaii.
If Waikiki is too lively for you, Lanikai Beach will be a perfect choice for you! You might find parking more easily on "Kaiolena Drive" by the Lanikai Park. Sunset will be right behind you when you are facing the ocean. Perfect Picture Time!