Home of the only navigable river in Hawaii, as well as the beautiful Wailua River and famous Smith's Family Garden Luau, Wailua is also home to many hotels and resorts scattered along the beachfront. Only ten minutes away from Lihue Airport, the Wailua area also contains the popular Fern Grotto, a secluded area along Wailua River, and the Opaekaa Falls, a beautiful 150-foot waterfall that can be seen from an overlook along the road.