papakolea green sand beach at kau on the big island in hawaii

background beach beaches beautiful beauty big blue bright calm clear cloud coast color colorful cove crystal destination diamond escape exotic green hawaii hike hiking hot island kau lagoon landscape mountain nature ocean pacific papakolea paradise peaceful quiet recreation reef relaxing remote rock rocky romantic sand scenery scenic secluded sky stone summer sunny tourism tourist trail tranquility travel trip tropic tropical unique usa vacation volcanic warm water wave wild wilderness