One of the highest base elevations in Honshu — late-season snow on a scenic volcanic plateau near Oze National Park.
Runs
12
Vertical
600m
Summit
2000m
Base 1400m
Annual snow
5m/season
Popular
Best season Late November to early May
Why Marunuma Kogen Ski Resort
One of the highest base elevations in Honshu — late-season snow on a scenic volcanic plateau near Oze National Park.
Scenic volcanic plateau
Plan your trip
Marunuma Kogen is one of Japan's longest seasons — typically open into early May thanks to its 2,000 m elevation and northeast aspect. Quiet, advanced-friendly, ~3.5 hrs from Tokyo.
Hand-picked stays across the resort's two zones.
Single self-contained resort hotel — Hotel Sunburst — at the lift base, ski-in/ski-out, onsen.
Pass, lessons, gear, and guides for powder days.
Adult 1-day ¥5,500. Long season — typically open mid-November through early May, one of Japan's longest.
Terrain in detail
MellowCruisey terrain — fine for advanced skiers as a rest day, not a destination. Difficulty, powder character, and the stats that matter on the mountain itself.
Hardcore index
20
Cruisey terrain — fine for advanced skiers as a rest day, not a destination.
From terrain split, run profile, vertical drop, expert features.
Powder profile
Sea-of-Japan storm cycles — deep, heavier snow.
Heavier, frequent storm cycles — deep refills, denser snow.
5
m
per season
Frequent deep days through midwinter
Expert runs
1 of 12
Estimated from advanced terrain split.
Vertical drop
600m
Solid sustained pitch.
Steepest pitch
—
Pitch not published.
Backcountry gates
None
In-bounds skiing only.
Tree skiing
Limited
Mostly groomed terrain.
Moguls
Few
Mostly cord and powder.
Best for
Terrain & features
Getting there
Nearest airport, train and bus options, and what the drive looks like in winter conditions.
From airport
80 minutes by Shinkansen from Tokyo
Train / bus
Shuttle from JR Jomo-Kogen Station 80 minutes by Shinkansen from Tokyo
Overview
Shuttle from JR Jomo-Kogen Station
From airport
80 minutes by Shinkansen from Tokyo
Live conditions
Off-seasonThe mountain is resting.
Next season
Opens late November
Current temp 10°C, wind 9 km/h. We’ll resume the daily report once snowfall picks up.
Forecast data via Open-Meteo. Refreshes hourly. Always verify with the resort before driving up.
Nearby resorts
More resorts in Gunma
powder-focused
A ropeway onto Mt Tanigawa — serious steep backcountry, gate-managed powder, genuine alpine terrain much closer to Tokyo than people think.
resort town
Japan's most famous onsen town, with a working ski resort on the ridge above — 2,000m summit, expansive views of Mt Shirane, and 100 public baths in the village.
resort town
A high-elevation onsen resort next to an active volcano — one of Japan's highest ski bases, dry snow, and a very distinctive sulphur-scented village.
family-focused
Long groomed runs across the Agatsuma highlands — high enough to ski late into March reliably.
Trail map
Open full sizeReady to book?
Stays, lift passes, rentals — everything you need in one place.
Book & plan
At the resort
Book accommodationOfficial resort siteGetting there
Domestic flights to Tokyo HanedaNagano airport transfers