Oahu features a nice balance of urban and beach environments. And with pleasant weather year-round, there really is no wrong time to visit. Waikiki Beach promises to please, but be forewarned: There's a good chance a barrage of tourists will greet you. For more elbow room, head to Kailua's Lanikai Beach. Before leaving, carve out some time for visiting Honolulu naval sights like the Pearl Harbor National Memorial and the Battleship Missouri Memorial