The Waialua River is one of five navigable river in Hawaii. It drains off Waialeale Mountain, which averages 488 inches of rain per year and is considered the wettest spot on earth.
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Hawaii is the worldwide leader in harvesting macadamia nuts and orchids.
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The Island of Nihau, Hawaii is a privately owned island, with livestock raising as its principal industry. There is highly limited access by general public through helicopter landings at uninhabited sites.