Oloʻupena Falls, or Oloupena Falls, is a waterfall located in the north-eastern part of Hawaiian Island of Molokai, and is considered to be the fourth highest waterfall in the world. Falls have formed on a short, seasonal stream and are falling over the edge of one of the tallest sea-side cliffs of the world, located between the Pelekunu and Wailau valleys. Falls have gnawed a...