Nikkō (日光市 Nikkō-shi) is a city located in Tochigi Prefecture, in the northern Kantō region of Japan. As of May 2015, the city had an estimated population of 84,197 and a population density of 58.1 persons per km². Its total area was 1,449.83 km². it is a popular destination for Japanese and international tourists. Attractions include the mausoleum of shogun Tokugawa Ieyasu (Nikkō Tōshō-gū) and that of his grandson Iemitsu(Iemitsu-byō Taiyū-in), and the Futarasan Shrine, which dates to the year 767.
Nikko had been a center of Shinto and Buddhist mountain worship for many centuries before Toshogu was built in the 1600s, and Nikko National Park continues to offer scenic, mountainous landscapes, lakes, waterfalls, hot springs, wild monkeys and hiking trails.
Nikko and the Okunikko area around Lake Chuzenji, in particular, are well known for their beautiful autumn colors (koyo). In the average year the colors start descending from the higher elevations of Yumoto Onsen in early October, are best around Lake Chuzenji and the Irohazaka road in mid to late October and reach the town of Nikko in the first half of November.
Nikko is located along Japan’s Romantic Road.