Waipio Valley, Hawaii- the Valley of Kings on the Big Island of Hawaii - Located along the Hamakua Coast on the northeast shore of the Big Island of Hawaii, the Waipi`o Valley is the largest and most southern of the seven valleys on the windward side of the Kohala Mountains. The Waipi`o Valley is a mile wide at the coastline and almost six miles deep. Along the coast is a beautiful black sand beach often used by motion picture production companies. On both sides of the valley there are cliffs reaching almost 2000 feet with hundreds of cascading waterfalls, including one of Hawaii's most celebrated waterfalls - Hi`ilawe. The road into the valley is very steep (a 25% grade). In order to travel into the valley, you must either ride down in a four wheel drive vehicle or hike down to the valley floor.