At 2,017m, Mount Kumotori (雲取山) is the highest mountain in Tokyo. The peak actually stands at the boundaries of Tokyo, Yamanashi Prefecture and Saitama Prefecture. I went there on a day-hike a few weeks ago. I basically followed the plan outlined here (with map). I started in the morning at the trailhead of Kamozawa (鴨沢), west of Lake Okutama in Yamanashi Prefecture: It can be reached by bus from Okutama station. The trail goes through the forest until it reaches the summit of Mount Nanatsuishi (七ツ石山). Then it follows the well-trodden path on the Ishi Ridge (石尾根) until the summit of Mount Kumotori. I ate lunch there then went back (almost) the same way: The only difference is I took the Beech Hill (ブナ坂) trail to get around the summit of Mount Nanatsuishi. I was back at Kamozawa before sunset to catch the bus back to Okutama.
Above, Lake Okutama in the morning.
Above, in front of the bus stop at Kamozawa.
Above, Mount Fuji.
Above, on the Ishi Ridge.
Above, crumbling shrine on the way to the summot of Mount Nanatsuishi.
Above, summit of Mount Nanatsuishi.
Above, Mount Kumotori (on the right side) and the path that leads there.
Above, tiny dog at the summit of Mount Nanatsuishi.
Above, on the way to Mount Kumotori.
Above, helicopter landing pad.
Above, hut on the way to Mount Kumotori.
Above, the emergency hut at the summit of Mount Kumotori.
Above, summit of Mount Kumotori.
Above, some menacing clouds were gathering.
Above, when I took this picture, I was the highest person in Tokyo.
Above, on the way down.
Above, view of the summit of Mount Nanatsuishi.
Above, on the Beech Hill trail.
Above, view of the pagoda of Mount Odera.
Above, helicopter near Kamozawa.
Above, at Kamozawa.