U.S. News Insider Tip: If you're lucky enough to visit Wailua Falls when locals are selling ... island is home to the only navigable river in Hawaii, allowing visitors to get an eyeful of the ...

Kauai, the fourth largest Hawaiian Island, is a lush land of peaks and valleys, postcard-worthy ... turn inland south of Wailua on Hwy 580 to visit Opaeka'a Falls. If you're feeling adventurous ...