Bouldering and climbing gym jam session Mitaka
Bouldering Gym in Mitaka, Tokyo
About Bouldering and climbing gym jam session Mitaka
Jam Session Mitaka specializes in bouldering and crack climbing, 3 minutes from Mitaka Station. Seven varied walls plus 24 dedicated crack routes make it Tokyo's go-to for jamming technique.
Hours & Pricing
Climbing Facilities & Amenities
Bouldering Wall
Seven distinct walls (labeled A through G) span the full angle spectrum from slab to vertical to aggressive overhangs with bulge and mushroom-shaped features. The variety keeps sessions interesting whether you're working technical footwork on slabs or training power on steep terrain. Each wall offers different character, so you can build well-rounded skills across climbing styles.
Crack Climbing
This is where Jam Session truly stands out—24 crack routes covering finger, thin hand, and wide hand widths at multiple angles. It's rare to find this much dedicated crack terrain in Tokyo, making this gym essential if you're prepping for outdoor trad climbing or just want to master jamming techniques. The variety means you can session cracks all day and still find new challenges.
How & When To Visit
Nearest Station
Mitaka Station
Walking time: 3 minutes
Address
Japan, 〒181-0012 Tokyo, Mitaka, Kamirenjaku, 2 Chome−2−5 ポリフォニー三鷹ビル 2階
🟢 Quiet Times
Weekday mornings/afternoons
🔵 Social Times
Evenings & weekends