Tochigi is a Japanese prefecture north of Tokyo that encompasses part of Nikko National Park. The cedar-filled park contains volcanic Mt. Nantai and the adjacent Lake Chūzenji, formed when the mountain erupted. At the lake’s east end are the picturesque, 97-meter Kegon Falls. The city of Nikko, in western Tochigi, is home to Tōshō-gū, an elaborate gold-encrusted shrine honoring the first shogun military dictator.