Mizugaki

Also known as: 瑞牆山, Mizugaki-yama

Jagged granite peak 2230m; maple/pine forest; Kanmanboron 200m monolith; cradle of Japanese trad

Granite domes/boulders
TradBoulderingMulti-pitch
Grade range
YDS 5.7-5.15 (bold trad/sport); boulders to V16 Japanese (Dankyu) + YDS
A lone hiker stands atop a rocky mountain peak under a bright blue sky.

The climbing

What there is to climb at Mizugaki, and whether a mixed-ability group can split up here.

Manta comparison band
Grades 3 to 53-5
Routes & sectors

theCrag 195 routes; many more in Japanese guidebooks. Confirm.

Local testpieces

A Thousand Days of Lapis Lazuli 5.14a R/X (Moai Face); Cosmos 5.13a; Canoe 5.11b; Gonbei 2 5.11a; Floatin V16 boulder; Asura V8

Splitting the group

Sport at Kasameri Sawa + trad/multipitch Toichimen/Fudo Sawa + boulders; split by sector/discipline

Accessibility & group fit

Little beginner terrain; longer alpine approaches; best for experienced/independent parties

Rock & setting

Rock type & quality

Fine-grained granite; alpine character; some loose/gardening on off-routes

Style, angle & exposure

Fine-granite cracks, slabs, faces; alpine multipitch trad + steep sport (Kasameri); highball boulders

Aspect & shade

Varied; south walls sunny; forested shade in gullies

Crowds

Quieter than Ogawayama; Kasameri busy weekends; remote towers solitary. Confirm.

Season & conditions

Dry / climbable window

Apr-Nov; avoid tsuyu Jun; cold/snow winter at altitude. Confirm.

Best season

Apr-Nov; boulders best cool autumn; sport spring-autumn

Seasonal specials

Autumn maple foliage; jagged 2230m peak; alpine ambiance

Alpine weather swings; tsuyu rain Jun; wet gardening on lesser routes; cold. Confirm.

Approach & gear

Within Chichibu-Tama-Kai NP; parking/camp fees; JFCA (freeclimb.jp) contact for access/ethics. Confirm.

Permits and operators change - confirm before booking.

Approach

Park at Mizugaki trailhead/campsite (approx 35.896249,138.573373); approaches 15-60 min; alpine, gardening

Transport

Car; near Mizugaki-yama, Yamanashi; approx 2.5-3 hr from Tokyo; seasonal bus from Nirasaki stn. Confirm.

Rack & gear

Full trad rack incl doubles/big cams; multipitch kit; pads for boulders; mobile patchy. Confirm.

Accommodation

Base campground (popular); mountain huts/guesthouses 10-15 min drive; towns 30-40 min

Facilities

Trailhead kiosk; campsite toilets; limited on-site services

Bolting & safety

Bolting & anchors

Sport bolts at Kasameri; trad elsewhere; bold runouts on hard trad; verify fixed gear. Confirm.

Hazards

Bold trad runouts; loose rock/gardening; bears; alpine weather; navigation to hidden towers

Guiding

None required; JMGA guides advised for bold trad/multipitch

Emergency & rescue

Police 110; fire/ambulance 119; mountain rescue via police; limited signal

This profile is desk research, compiled from public sources - not a first-hand crag report. Coordinates are approximate.

Also in Japan

Climb Mizugaki with your crew
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