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🇯🇵 Gunma Travel Guide · 2026

Gunma 群馬

Kusatsu, one of Japan's top hot-spring towns, with its steaming Yubatake water field in the center; Ikaho Onsen's 365-step stone stairway; Fukiware Falls, nicknamed the Niagara of the East; and the UNESCO Tomioka Silk Mill — Gunma is the mountainous Kanto prefecture packed with onsen and nature, landlocked but full of hot springs to soak in.

1.9M
Population
Capital
Maebashi
Famous for
Onsen & silk
Famous food
Mizusawa udon & yaki-manju
📅 Updated May 2026 · by the Wherebest team · no hidden ads
Why visit Gunma

Why Gunma is Kanto's hot-spring heartland

Honestly, Gunma may not be the first name Thai travelers think of, but if you love soaking in onsen, this is the prefecture to visit. Kusatsu is one of Japan's most famous hot-spring towns, with the Yubatake steaming in the center and the yumomi hot-water-stirring show; Ikaho Onsen has a 365-step stone stairway climbing the hillside lined with ryokan. Nature lovers get Fukiware Falls (the Niagara of the East), Lake Haruna in a volcanic caldera, and Mt Tanigawa with a ropeway to the views — plus the UNESCO Tomioka Silk Mill for a dose of history.

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♨️
Kusatsu Onsen
One of Japan's top hot-spring towns
🏛️
Tomioka Silk Mill
UNESCO industrial-revolution heritage
💧
Fukiware Falls
The Niagara of the East
🍜
Mizusawa udon
One of Japan's three great udon
⭐ HIGHLIGHTS

Gunma highlights

Experiences the Wherebest team recommends — don't miss these on a first trip

EXPLORE

Explore Gunma — pick what interests you

🎯 Wherebest picks · top sights across Gunma
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📸 Top sights across Gunma
♨️
Kusatsu Onsen
Hot-spring town

One of Japan's most famous hot-spring towns, with the Yubatake spewing steaming sulfuric water in the center — beautifully lit at night; the mildly acidic water is said to be good for the skin, and there are several free public baths and the yumomi water-stirring show with wooden paddles.

🆓 Free to walk the Yubatake
🪜
Ikaho Onsen
Stairway street

A hillside onsen town with a 365-step stone stairway lined with ryokan, sweet shops and retro game parlors; the water comes in two kinds — iron-rich golden water and clear water — and strolling in a yukata makes for lovely photos.

🆓 Free to walk the stairway
🏞️
Lake Haruna
Caldera lake

A lake in the caldera of Mt Haruna, ringed by mountains and cool year-round; row boats and cycle around it in summer, ice-fish in winter, and ride the Haruna ropeway for summit views.

🆓 Free around the lake
💧
Fukiware Falls
Niagara of the East

A wide falls where the river pours into a rocky cleft mid-stream, earning the nickname Niagara of the East; follow the gorge-side path to see it up close — best when the water is high and the autumn leaves turn.

🆓 Free to walk
🏛️
Tomioka Silk Mill
UNESCO heritage

A Meiji-era silk-reeling mill on the World Heritage list, built in 1872 as the start of Japan's modern silk industry; the red-brick buildings and original machinery survive intact, with guides to explain the history.

🎫 Entry fee
⛰️
Mt Tanigawa
Ropeway views

A high mountain in the north of the prefecture near Minakami; ride the Tenjindaira ropeway for easy mountain-range views, with brilliant autumn foliage across the slopes and onsen and rafting nearby.

🚠 Ropeway fee
🎯 Wherebest picks · Gunma itineraries for every style
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📅 Sample itinerary · Gunma 3 days
Day 1Kusatsu Onsen
Head north to Kusatsu Onsen, soak in the classic waters, stroll the steaming Yubatake, watch the yumomi water-stirring show, and stay the night in a ryokan
Day 2Ikaho + Lake Haruna
Morning on Ikaho's 365-step stone stairway in a yukata → afternoon at Lake Haruna for a boat or the ropeway, with Mizusawa udon along the way
Day 3Tomioka + Fukiware
Visit the UNESCO Tomioka Silk Mill for the history → if time allows, continue to Fukiware Falls, the Niagara of the East, or ride the Mt Tanigawa ropeway in the north
🎯 Wherebest picks · how to prepare for Gunma & Japan
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🇯🇵 Gunma at a glance
📌 Everything before you fly
Main station
🚄
Takasaki (Hokuriku/Joetsu Shinkansen, ~50 min from Tokyo)
To Kusatsu
🚌
Shinkansen to Takasaki, then train and bus to Kusatsu, ~3 hr total
To Ikaho
🚌
From Shibukawa Station, a bus up the hill to Ikaho
To Tomioka
🚃
Joshin line to Joshu-Tomioka Station, walk to the silk mill
Best seasons
🍁
Onsen good all year, autumn leaves Oct-Nov, snow-and-onsen in winter
Driving
🚗
Sights are scattered in the mountains; a rental car is easiest for multiple stops
✅ 4 prep steps
1
Check your visa
Thai travelers apply for a Japan tourist visa or e-visa before flying
2
Pick a base
Onsen = Kusatsu/Ikaho · lake = Haruna · mountains & adventure = Minakami
3
Check the season
Onsen are good all year; autumn leaves Oct-Nov; in winter, soaking in an open-air bath amid snow is sublime
4
Get an eSIM + plan transit
Take the Shinkansen to Takasaki then trains and buses up the mountains; sights are spread out, so rent a car or check bus times ahead
WHERE TO STAY

Areas in Gunma pick your base

Main areas and cities that cover a trip — pick the base that fits your plan

Search Gunma hotels (Agoda) →
🏆 STAY PICKS

Gunma stays · 3 budgets

Three sample stays · Luxury · Mid · Budget · compare 3 sites instantly

🏨
★ 9.1💎 LUXURY
Kusatsu onsen ryokan
📍 Kusatsu
from฿4,500/night
📖 Full review — soon
🏩
★ 8.7⭐ MID-RANGE
Ikaho ryokan by the stairway
📍 Ikaho
from฿3,000/night
📖 Full review — soon
🛌
★ 8.2💰 BUDGET
Hotel around Takasaki Station
📍 Takasaki
from฿1,300/night
📖 Full review — soon
🔎 SEARCH YOURSELF

Nothing fits? Search all 3 sites

About — Gunma travel 2026

Gunma (群馬) is a Kanto prefecture northwest of Tokyo — a landlocked, mountainous region with Maebashi as its capital and Takasaki as the main rail hub. It is famous for top-tier hot springs such as Kusatsu and Ikaho, as well as the UNESCO Tomioka Silk Mill, Fukiware Falls, Lake Haruna and Mt Tanigawa.

It is easy to reach from Tokyo — about 50 minutes by Shinkansen to Takasaki, then a train or bus up into the onsen towns. Most sights are in the mountains and fairly spread out, so a rental car makes a multi-stop trip much smoother.

This page gathers stays by onsen area, standout food such as Mizusawa udon, yaki-manju and konnyaku, the main sights and a 3-day Gunma plan, with one-click hotel price comparisons across Agoda, Booking and Trip.com. Information is current for 2026, but please re-check prices, opening hours and transport schedules before you travel.

FAQ

FAQ · Gunma travel

What is Gunma known for?
Gunma is Kanto's onsen heartland, home to the famous hot-spring towns of Kusatsu and Ikaho, plus the UNESCO Tomioka Silk Mill, Fukiware Falls, Lake Haruna and Mt Tanigawa.
How do you get to Kusatsu Onsen?
Take the Shinkansen from Tokyo to Takasaki (about 50 minutes), then the JR Agatsuma line to Naganohara or a direct bus up to Kusatsu — about 3 hours in total.
Do you need a car in Gunma?
For the major onsen towns alone, trains and buses work, but spots like Fukiware Falls and Lake Haruna are far out with sparse public transport, so a rental car is much more convenient.
How are Gunma's onsen different?
Kusatsu has the highest natural flow of mildly acidic water in Japan and the Yubatake in the town center, while Ikaho is known for its 365-step stone stairway and iron-rich golden water — classic onsen atmosphere.
How many days do you need in Gunma?
Two or three days is ideal — soak and stay overnight in Kusatsu, then Ikaho and Lake Haruna, and finish with Tomioka or Fukiware; it pairs easily with Tokyo.

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