One of the “100 Famous Mountains” of Japan. Located in Chichibu-Tama-Kai National Park, on the border between Yamanashi, Nagano, Saitama, and Tokyo. There are few courses – I choose course starts Kamihigawa pass (high-elevation trailhead is at1580M). Hike is relatively easy – it took us around 5 hours (including lunch). No truly hazardous sections so good for beginners and children.