Up the Kamanashi valley from Nirasaki towards Hinoharu: 13.4 km, +166 m; the station is about 900 m from the road and 120 m up the cliff. Bears are seen near Hinoharu (Hokuto city: late June to late November).
Best season: Spring and autumn; the Sasago pass road closes in winter. No body manages the old road or publishes a walking season: the month table below is from climate normals. Most of the road is on town streets and main roads; in winter the Sasago pass holds snow and its road is closed to traffic. Before you go
Nirasaki to Hinoharu
Loading topographic map…
Flat (<5%)
Green: Nirasaki to Hinoharu. Grey: full trail. Elevation follows this mapped track.
Facts read from the guide's sources and OpenStreetMap on 29 September 2026. A page can change after we read it, so confirm with your accommodation before you rely on a date or a bed.
Stage start
Nirasaki
Town
Nirasaki (韮崎), an old post town with a JR Chūō Line station. OpenStreetMap maps no place to stay near it, but hotel listings show at least one a short walk from the station: check a booking site, or stay in Kōfu, three stations back.
A town or village: find accommodation yourself. TrailSplits has not checked what is open.
Stage end
Hinoharu
Town
Hinoharu (日野春) station on the JR Chūō Line, about 900 m from the road and some 120 m up the Shichiri-iwa cliff (not counted in the day's distance or climb). No place to stay is mapped nearby: ride the train back to Kōfu, or on to Kobuchizawa, which has places to stay. Bears are seen here: Hokuto city recorded one 1.3 km from the station on 9 September 2026.
A town or village: find accommodation yourself. TrailSplits has not checked what is open.
Walking time for this leg
No walking time is published for this leg. Our estimate for the stage is 2 h 59, computed from the mapped line and its climbing.
Make it your trip
Walk by day, sleep in the towns
Every day ends at or near a railway station, but from Saruhashi to Fujimi most of them have no place to stay nearby: base yourself in Ōtsuki for the passes, in Kōfu for the basin, and in Kobuchizawa or Kami-Suwa for the last days, and ride the JR Chūō Line to and from each day's ends. In Tokyo, Fuchū and Hachiōji have hotels by their stations.
Typical weather on this stage, around 357–494 m. Select a month to see why it is rated as it is.
Monthly climate averages and daylight
Month
Weather
Mixed
Mixed
Mixed
Good
Good
Mixed
Mixed
Poor
Mixed
Good
Good
Mixed
Day / night
8°/-2°
9°/-2°
13°/1°
18°/5°
23°/10°
25°/15°
28°/19°
30°/20°
25°/16°
20°/10°
15°/4°
10°/-1°
Rain, mm
36
48
83
91
96
130
132
112
142
143
53
33
Snow at high point
Possible
Possible
Possible
–
–
–
–
–
–
–
–
Possible
Daylight
9 h 59
10 h 52
11 h 54
13 h 04
14 h 02
14 h 34
14 h 22
13 h 33
12 h 28
11 h 21
10 h 19
9 h 45
Source: TerraClimate 1991–2020 monthly averages. Averages for the area at each point’s elevation (4 km grid, corrected for height). Not a forecast or a report of current trail conditions. Snow at the high point is estimated with a simple snowpack model from these temperatures and precipitation, not observed; steep islands and high summits can hold more snow than it shows. Daylight is for the 15th of each month. Hut, transport and park seasons are separate: check them for your dates.
Before you go
Prepare for the Kōshū Kaidō
Arrange your stays, food and travel first, then check conditions again near departure.
Streets and main roads
Most of the road is urban or follows main roads with traffic: keep to the pavements, and where a road has none, walk facing the traffic. Through Hachiōji the old road is the national highway.
Black bears live in the mountains along the road: Hachiōji city lists its western mountains, where the Kobotoke pass is, as bear habitat, and Hokuto city recorded a bear 1.3 km from Hinoharu station on 9 September 2026, with sightings from late June to late November. On the pass and hill days carry a bell or radio, walk in company where you can, stay off the paths at dawn, dusk and after dark, and check the cities' sighting pages before you go.
Most of the road is asphalt with little shade, and the Kōfu basin (days 9 to 11) is among the hottest places in Japan in July and August. In summer start at first light, carry more water than you think, and rest through midday.
The Kobotoke pass (day 4, 548 m) and the Sasago pass (day 8, 1,096 m) are mountain paths and old roads, with no shops between the stations. The prefectural road over the Sasago pass closes every winter to walkers as well as cars (in 2025/26 from 15 December to mid-April): in that season take the train from Sasago to Kai-Yamato.
The JR Chūō Line follows the road from Hachiōji to Shimosuwa, and the Keiō Line in the Tokyo suburbs: every day of this guide ends at or within about 1 km of one of their stations. At the smaller mountain stations, check the timetable before you set out.
Prepare every day while you still have a connection, and test it offline before you set out.
Keep your route and maps on your phone for places without a signal. For multi-day trips, prepare them in the installed TrailSplits app.
Open this trail in the app.Install TrailSplits, then open this trail there. On iPhone, downloads in a browser may not be available in the installed app.
Choose your route or stages. Choose Prepare offline above. Wait for the route and maps to finish downloading.
Try it before leaving coverage. Switch offline, close and reopen the app, then use My Hikes to start navigation. Repeat for every part you will need.
Saving a bookmark is not a map download. Storage can be cleared by your device; keep a backup map for remote trips.
Route & sources
About this map
The line is the old road as mapped on OpenStreetMap (relation 9561988, 甲州道中, planet of 27 September 2026), 215.9 km from Nihonbashi to Shimosuwa, mostly on town streets and main roads; through Hachiōji the old road is the main road, walked on its pavements. The days end at railway stations on or near the road, most in its old post towns: TrailSplits chose them, not an authority, and the walking times are our estimates.
Official guidance and mapped-source comparison checked 29 September 2026. Map data is a route reference, not confirmation of today's path, weather or accommodation availability.