One of the tallest waterfalls on Maui, the soaring, 400ft Waimoku Falls tumbles dramatically down a jungle-lined lava-rock face into a boulder-dotted pool. In Hawaiian, 'waimoku' means water that cuts, severs or breaks in two. The walk to get to the beautiful falls is a memorable one: follow the Pipiwai Trail for 2 miles, past tropical trees and bamboo forests.