On any given day, Wailua River State Park in eastern Kauai is jam-packed with tourists. They fill parking lots and hiking trails and riverboat cruises, eager to experience the 1,100-acre preserve’s cultural and geological treasures, everything from temple ruins to the 151-foot Opaekaa Falls. But in October, officials announced a discovery that could put a serious crimp in the park’s popularity. After all, no one wants to spend their vacation being showered with thousands of tiny stinging insects. It seems an uninvited guest has found its way to the park:…
