This river coming down the mountain in length Nantai houses some of the points of interest to travellers going to Nikko. In the highest part of the river we find one of the most impressive waterfalls in Japan, Kegon waterfall, with a 97m drop. These cascades were deviated from the main river by the eruption of Nantai. Below, we can find the beautiful abyss area, belonging to the Mausoleum Kanmangafuchi Futarasan, we have the Kyo Shin sacred bridge, considered to be one of the most beautiful bridges in Japan. According to legend, in the year 766 the Buddhist monk Shodo and his followers were preparing to climb to the top of Mount Nantai to pray for national prosperity.