Around Tokyo, there are several amazing places to do multi-pitch climbing. The best well known is Ogawayama, Nagano. For summer time, many climbers all over the places in Japan will gather to experience this granitic rock. Other areas such as Izu Joyama, Izu Umikongo, and Mitsutouge near Mt. Fuji also gives you a great challenge for over 100 m of free climbing.