Kāne‘ohe Bay is surrounded by some of the most well-watered lands in Hawai’i and some of the most beautiful mountains in the world: the Ko’olau Range­peaks, two to three thousand feet high, joined by walls of sheer green cliffs. Ka Moa’e (the ENE trade winds) sweeps warm moist air into the mountains and clouds form along the summit. Rainwater has cut steep gullies into the cliffs giving them their distinctive wrinkled appearance. When it rains, dozens of thin silvery waterfalls run down the vertical gullies; half obscured by rain and mist, the waterfalls seem to pour directly from the clouds. […]

Source: http://archive.hokulea.com/ike/moolelo/voyaging_chiefs_kaneohe_bay.html