Before Exploring Gunma's Hidden Gems
Gunma's lesser-known attractions include not only famous destinations such as Kusatsu and Ikaho, but also small hot spring towns, sericulture villages, former railway stations, and satoyama activity centers where you can slowly trace how local communities developed.
Here, a "hidden gem" does not mean a place that is always uncrowded. Instead, we introduce 10 spots worth choosing for their hot springs and mountain-village scenery.
Quiet conditions vary by day and event
Even places that are usually peaceful can draw crowds during autumn foliage, peak flower seasons, local events, and holiday periods.
If you want a quiet visit, avoid event dates, choose an early time after opening or a weekday, and take care not to block routes used by local residents.
Do not cross the entire prefecture in 1 day
Gunma's mountain areas may look close together on a map, but routes often follow mountain passes and valley roads, so allow ample travel time.
Narrow your trip to one area—Agatsuma, Minakami, western Jōshū, or the area around Midori—and combine one hot spring with one walking destination for a relaxed visit.
Check bathing conditions and road information on the day
Conditions for day-use bathing may change because priority is given to overnight guests, facilities are closed, or equipment is being inspected.
Mountain roads and ravines can also be affected by rain, snow, rockfalls, or construction, so check official notices from the facility, municipality, and road administrator on the day of your visit.
4 Places to Experience Hot Springs and Village Culture in Agatsuma
In the Agatsuma area, you can visit a hot spring district relocated during dam construction, a riverside therapeutic hot spring, a sericulture village, and a former station on a mining railway.
Even within the same region, the sites are far apart, so planning separate days for the Shima and Kuni areas can be practical.
1. Kawarayu Onsen: A Hot Spring Town Continuing on New High Ground
Kawarayu Onsen was relocated during the construction of Yamba Dam and continues the history of its hot spring town in a new location.
At the communal bath Ōyu, you can enjoy the hot spring while sensing the surrounding mountains and lake.
If walking from the station, check the elevation changes and return times, and stay hydrated before and after bathing.
Follow official guidance for Ōyu's operating days, reception, and what to bring.
2. Shima Onsen: Walk Along the River and Compare Each District
Shima Onsen stretches lengthwise along the Shima River, where inns, communal baths, drinking fountains, bridges, and old buildings create a different scene in each district.
Rather than hurrying through the entire hot spring town and back, choose a walking area from places such as Yamaguchi, Arayu, and Hinatami to appreciate the sound of the river and the atmosphere of the lanes.
Check the conditions of each bathing facility individually.
3. Kuni Akaiwa: See Sericulture Farmhouses and Mountain-Village Scenery
Kuni Akaiwa is an Important Preservation District for Groups of Traditional Buildings where sericulture farmhouses, storehouses, stone walls, farmland, and religious facilities remain on a river terrace.
In 2006, Akaiwa became the first district in Gunma Prefecture selected as an Important Preservation District for Groups of Traditional Buildings, preserving a concentrated sericulture-village landscape on the river terrace along the Shirasuna River.
This is not only a sightseeing site but also a living community, so do not enter private property and give priority to residents and vehicles.
Viewing the exteriors of the buildings together with the surrounding landforms reveals how life in the mountain village developed.
4. Former Ōshi Station: Trace the Railway That Carried Iron Ore
At the former Ōshi Station, the platform, station building, hopper building, and other structures of the Ōshi Line, which supported the transport of iron ore from the Gunma Iron Mine, have been restored or preserved.
The Ōshi Line opened in 1945 to carry iron ore from the Gunma Iron Mine. Its platform and station building have been reconstructed, while part of the hopper building has been preserved.
The former Ōshi Station has been open to the public since 2018.
Comparing exhibition photographs with the outdoor remains helps you picture how the railway linked mountain mining with industry.
Check for changes to opening days or events before heading there.
2 Places to Enjoy Therapeutic Hot Springs and Satoyama Culture in Minakami
In southern Minakami, you can combine a hot spring district along the Mikuni Kaidō with Takumi no Sato, where workshops are scattered through a rural landscape.
If using public transportation, check both outbound and return bus times from Jōmō-Kōgen Station and allow time to walk through the broad satoyama area.
5. Yujuku Onsen: Walk Through a Small Stone-Paved Spa Town
Yujuku Onsen has long been cherished as a therapeutic hot spring, with inns and communal baths gathered in a small district.
Its appeal lies less in glamorous streets than in lanes where the presence of the hot springs and everyday life feel close.
Some communal baths are intended primarily for local use, so always confirm which facilities tourists may use and the applicable rules.
For day-use bathing at an inn, ask about availability on the day.
6. Takumi no Sato: Connect Workshops and Rural Scenery on Foot
At Takumi no Sato, activity facilities for woodworking, washi paper, food, farming, and more are spread across a broad satoyama area and can be explored alongside traditional rural scenery.
Instead of trying to visit every facility, reserve one activity and walk around nearby stone Buddhist figures and old houses to leave room in your schedule.
Check the operating days and reception conditions of each workshop individually.
2 Places to Visit Caves and a Feudal Garden in Western Jōshū
In western Jōshū, you can choose between the underground landscape of Ueno Village and a historic garden in Obata, Kanra.
Comparing natural formations with a landscape designed by people offers two different kinds of observation on the same quiet journey.
7. Fujidō Cave: Underground Formations Beyond the Stairs
Fujidō is a limestone cave in the mountains of Ueno Village. Stalactites and stalagmites formed over long periods extend through the cave, and Buddhist names derived from a monk's exploration remain in use.
Because there is an uphill walk to the entrance and stairs inside the cave, shoes with good traction and comfortable clothing are suitable.
Prepare an extra layer for the temperature difference and proceed at a comfortable pace.
8. Rakusan-en Garden: Read the Arrangement of Borrowed Scenery and Teahouses
Rakusan-en is a feudal lord's garden attached to the Obata domain residence. Its pond, artificial hills, teahouses, and borrowed scenery incorporating the surrounding mountains create a space with depth.
Rakusan-en is a strolling pond garden designated as a national Place of Scenic Beauty in 2000 and is said to convey the transition in garden styles from the Sengoku period to the Edo period.
Rather than rushing once around the pond, change your viewing position and compare how the buildings overlap with the mountains to understand the design.
Visitor procedures may change on event days.
2 Places to Walk Through Ravines and Mountain Villages in Nanmoku and Midori
In Nanmoku Village and Midori City, visit a river-carved ravine and a satoyama facility with a limestone cave and waterwheel.
Water levels and footing change after rain, so even on a short walk, follow local restriction signs and do not approach the river unnecessarily.
9. Semi no Keikoku Ravine: View a Clear Stream Between Rock Walls
At Semi no Keikoku, you can closely view a narrow ravine carved by the Nanmoku River through hard rock and the distinctive landform created by the steep banks on both sides.
Enjoy the scenery from the walking path or bridge, and do not descend toward the water when the river is swollen.
Some nearby roads are narrow, so slow down and be considerate of oncoming vehicles and pedestrians.
10. Odaira no Sato: Learn About Mountain Life Through a Cave and Waterwheel
Odaira no Sato brings together a limestone cave, waterside park, waterwheel, activity facilities, and more, allowing you to see both landforms and tools used in daily life in one area.
Do not stop after the cave. Walking by the waterwheel and along the river broadens your perspective on how mountain communities have used water.
Closures and reservation requirements vary by facility, so advance confirmation is necessary.
Compare 10 Spots and Build Your Itinerary
To create a quiet trip, choose destinations based not only on fame but also on your interests, transportation, and the balance of indoor and outdoor time.
Aim for 2 or 3 places per day, and do not cut rest time after bathing or driving time on mountain roads.
Compare Features and Transportation
| Spot | Area | Main Appeal | Planning Note |
|---|---|---|---|
| Kawarayu Onsen | Naganohara | Hot spring culture continuing after relocation | Check bathing conditions and elevation changes |
| Shima Onsen | Nakanojō | Riverside hot spring town | Narrow down the districts to walk |
| Kuni Akaiwa | Nakanojō/Kuni | Sericulture-village scenery | Respect residential roads and private property |
| Former Ōshi Station | Nakanojō/Kuni | Mining railway remains | Check opening days |
| Yujuku Onsen | Minakami | Small therapeutic hot spring | Confirm which baths are available |
| Takumi no Sato | Minakami | Handcrafts and rural scenery | Choose workshops and check reservations |
| Fujidō Cave | Ueno | Limestone cave formations | Prepare for slopes and stairs |
| Rakusan-en Garden | Kanra | Feudal garden and borrowed scenery | Check visitor conditions on event days |
| Semi no Keikoku Ravine | Nanmoku | Rock walls and clear stream | Watch for high water and narrow roads |
| Odaira no Sato | Midori | Cave, waterwheel, and satoyama activities | Check operations for each facility |
Choose a 1-Day Model by Area
| Trip Theme | Example Combination | Suitable Way to Spend the Day |
|---|---|---|
| Hot springs and industrial history in Agatsuma | Kawarayu Onsen + Former Ōshi Station | Learn the history of relocation and railways |
| Mountain-village culture in Kuni | Kuni Akaiwa + Former Ōshi Station | Walk carefully through the village scenery |
| Hot springs and crafts in Minakami | Yujuku Onsen + Takumi no Sato | Choose one bath and one activity |
| Landforms and gardens in western Jōshū | Fujidō Cave + Rakusan-en Garden | Compare natural formations and designed scenery |
| Experience mountain-village water | Semi no Keikoku Ravine + Odaira no Sato | Visit a river, cave, and waterwheel |
Because a visit to Shima Onsen can easily take a long time on its own, consider making the hot spring town the focus rather than packing it into the same day as another area.
Choose Actions That Protect Quiet Places
In villages, avoid loud voices and long-term roadside parking, and be considerate when photographing people's faces, homes, and religious facilities.
In natural areas, do not take plants or stones, enter restricted zones, or leave trash behind.
At hot springs, follow the notices for each bath and give priority to local users.
Summary: Explore Hot Springs and Mountain Villages Quietly by Area
Gunma's hidden gems can be chosen around four themes: hot springs and villages in Agatsuma, therapeutic baths and crafts in Minakami, caves and gardens in western Jōshū, and waterside scenery in Nanmoku and Midori.
Rather than trying to visit all 10 places at once, narrow the trip to 2 or 3 places in the same area and leave room for bathing, walking, and travel.
Check official information and signs on the day of your visit, and thoughtfully experience the background of the hot springs and mountain villages without disturbing local life or nature.
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