On the Hawaiian island of Kauai -- known for its stunning scenery-- an aerial tour is highly recommended. Many scenic areas are inaccessible, or hard to reach, by car; the birds-eye view of Kaua'i's cliffs and canyons is spectacular; and the size of the island makes a good fit with an hour-long tour by air.
Above: the Waimea Canyon. As the story has it, Mark Twain dubbed Kaua'i's Waimea Canyon "the Grand Canyon of the Pacific."
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