WAIKIKI. For a glimpse of some of the world's more exotic wildlife, head to this delightful zoo on Waikiki's eastern end. There, you'll find 42 acres of animal habitats, filled with rhinos, wart hogs, crocodiles, giraffes, monkeys, tigers, and elephants. Native Pacific birds, including the endangered nene (Hawaii's state bird and a relative of the Canada goose), can be spotted, and special environments make longtime residents of the African savanna and the tropical forest feel right at home. You'll also encounter reptiles and amphibians.