A popular day-hike trail, within a couple of hours commute time from Tokyo, located in Yamanashi's Chichibu-Tama-Kai National Park.
Getting there: By car take the Chuo Expressway from Tokyo to the Katsunuma exit. Follow route 20 west to highway route 140. Go north to Nishizawa Keikoku (roughly 2.5 hours from Tokyo). By train take the JR Chuo Line to Yamanashi-shi Station (95 minutes by direct limited express train- about 4000 yen one way - from Shinjuku Station. From Yamanashi-shi Station, there are 3-5 bus round trips per day to the trailhead of the Nishizawa Gorge. The bus ride takes about one hour and costs 900 yen one way.