Mt. Wai'ale'ale is one of the rainiest places on earth, with an average of 440 inches of rain per year. “Wai'ale'ale” means Rippling Water or Overflowing Water," a reference to the pond on the summit cascade. Often shrouded in mist, the summit is also the site of a sacred heiau, or temple, dedicated to the god Kāne, the spirit of the water and the lord of the forests. Touring by helicopter is the the only way to see the summit, however; most views of Mt. Wai'ale'ale and its spectacular cascading waterfalls are from below.