Why visit
Takasaki is Gunma's strongest intercity gateway. Joetsu and Hokuriku shinkansen services, several JR lines and local transport meet here, while Takasaki Station, the city centre, Shorinzan Darumaji and the Byakue Dai-Kannon area are distinct trips. A city day can combine station-area food and one history or temple module; the hillside Kannon requires its own bus, taxi or lawful parking and walking time. It remains a religious site rather than a viewpoint prop: follow temple signs, keep approaches open and do not fly a drone. Takasaki is also the most resilient base when snow or wind removes a mountain plan, because rail, museums, shops and onward accommodation offer real alternatives.
Maebashi is the prefectural capital but not on the shinkansen. JR Maebashi, Shin-Maebashi and the Joshin or bus networks should not be treated as interchangeable. The prefectural museum and art resources, city centre, Tone River landscape and access toward Mount Akagi each require a named stop. Akagi is a mountain zone, not a downtown extension; roads, lake conditions, buses and winter access vary. A rental car helps, yet black ice, fog and snow remain decisive. Use Maebashi for a civic, cultural or food day and add only one confirmed foothill excursion. Parking at farms, road shoulders or snow-clearing spaces for a photograph is unsafe and inconsiderate.
Kusatsu Onsen sits high in the Agatsuma district and normally requires a bus after rail or a careful road journey. Naganohara-Kusatsuguchi Station is not the hot-spring centre, and the bus schedule determines the connection. Yubatake is a working hot-water distribution landscape; barriers, steam, sulphurous gases, maintenance and slippery winter surfaces must be respected. Never touch channels or enter a restricted source. Yumomi demonstrations, public baths, day-use ryokan and hotel baths are different products with different tickets and rules. A room booking does not automatically include every bath in town, and a public bath is not a photography space.
Japanese bathing etiquette is practical, not decorative. Wash before entering the shared bath, keep towels and hair out of the water, speak quietly, follow tattoo and swimwear policy, and never use a phone or camera in changing and bathing areas. Some Kusatsu water is hot and strongly acidic; enter gradually, avoid prolonged exposure and ask a medical professional when heart, blood-pressure, pregnancy, skin or mobility concerns exist. Do not claim therapeutic outcomes. At small community baths, local use takes priority and opening or visitor access may change. When unsure, choose a staffed day-use facility that publishes multilingual rules.
The wider Agatsuma valley includes Naganohara, Nakanojo, Shima Onsen, orchards, gorges and mountain roads. Kusatsu, Shima and Manza are separate destinations rather than stops on a frequent circuit. Buses can be infrequent and may need reservations; a car faces long grades, winter tyres, chain controls, closures and wildlife. Manza is at greater elevation and should not be attached casually to a Kusatsu evening. Volcanic zones can have gas restrictions or trail closures, while rain and thaw affect roads. Select one valley base, confirm the last connection and build a lowland alternative before leaving the station.
Ikaho Onsen rises above Shibukawa around a long stone stair street. Shibukawa Station is the rail gateway, not the bath town itself; scheduled bus, taxi or car completes the climb. The stone steps can be wet, icy and crowded, and many ryokan contain stairs or traditional rooms. Confirm accessible entrance, meal times and bath arrangement directly. Public footbaths, drinking-water points and day baths have separate rules. Nearby Mizusawa, Mount Haruna and museums are optional modules with their own buses and winter conditions. Do not force every site into one day or stop a car on the Haruna road for a lake photograph.
Tomioka Silk Mill is a protected industrial heritage site whose open buildings, tours, maintenance areas and admission procedures can change. Joshin Dentetsu from Takasaki is the principal rail approach, but the walk from Joshu-Tomioka and onward sites need time. The mill is more useful when paired with interpretation of labour, technology, silk production and global exchange rather than used as a facade. Follow current photography and conservation rules and never enter a roped industrial space. Gunma Safari Park, Myogi and other western attractions are separate trips; private rail, bus, taxi and roads do not create a high-frequency sightseeing circuit.
Minakami is a broad municipality, not a single resort outside one station. Jomo-Kogen serves the shinkansen, Minakami Station serves the conventional line and Doai is associated with the Tanigawa area; accommodations, rafting bases, ski areas and onsen valleys use different transfers. Reserve the hotel shuttle or bus and identify the exact pickup point. Outdoor operators cancel for river level, wind, avalanche danger or insufficient conditions. Rafting, canyoning and skiing should use qualified operators, suitable insurance and provided equipment. An onsen night is a complete alternative when an activity stops; do not pressure staff to operate during a warning.
Mount Tanigawa is serious mountain terrain with rapidly changing cloud, rain, wind, snow and visibility. Ropeway access, when operating, reduces ascent but does not remove exposed ridges, navigation, seasonal snow, lightning or the need to descend before the final service. The summit route and a ropeway observation visit are different products. Check official mountain, ropeway and weather information; carry appropriate layers, water, navigation and emergency margin; file a plan where recommended. Winter and shoulder-season climbing requires specialised judgement and equipment. A closed ropeway or trail is not an invitation to use an unmarked forest shortcut.
Oze is a protected wetland and mountain environment reached through multiple gateways in Gunma, Fukushima, Niigata and Tochigi. From Gunma, Katashina and trailheads such as Hatomachitoge are common planning points, but access roads, buses, private-vehicle restrictions, operating seasons and reservation systems change. Ozegahara, Ozenuma and Mount Hiuchigatake are not one flat boardwalk stroll. Choose a named route, distance and overnight plan; check snowmelt, bridge and hut status; carry all necessary water, food, layers and waste. Stay on boardwalks, yield safely, take no plants, use toilets correctly and never enter closed restoration areas.
Snow shapes northern and highland Gunma from late autumn into spring. A vehicle marketed with winter tyres is not a guarantee against black ice, whiteout, avalanche control or closure. Confirm the exact equipment, chains, insurance and route; remove snow from roof, lights and windows; fuel early and turn back before conditions collapse. Trains and buses can also delay, but often remain safer than an unfamiliar mountain drive. Never park in a plough route, tunnel mouth or chain-fitting area. Build one full buffer day before a flight, and use a city or staffed onsen when heavy-snow alerts narrow the journey.
A realistic Gunma itinerary uses modular bases: Takasaki for the urban and Tomioka corridors; Shibukawa or Ikaho for the central slope; Kusatsu or another Agatsuma onsen for the northwest; Minakami for Tanigawa; and Katashina only for a prepared Oze plan. Stable facts are the rail gateways, towns and protected landscapes. Variable facts are bath access, ropeways, buses, hut seasons, trail damage, snowfall, ski operation and volcanic or avalanche restrictions. Verify each variable with the responsible official source close to travel. Removing an unsafe mountain or bath module improves the trip; it does not make the itinerary incomplete.

Suggested itinerary
Ten modular days through urban Gunma, two onsen valleys, silk heritage and the northern mountains
The course avoids commuting between distant onsen every night. Oze appears only as a prepared seasonal option and Mount Tanigawa receives a separate weather decision. Travellers with five days should combine Takasaki/Tomioka with either Ikaho, Kusatsu or Minakami—not all three.
- 1
Day 1 — 10:00
Takasaki gateway and city orientation
Arrive by the correct shinkansen, store luggage and learn the local rail and bus layout. Pair the centre with one temple, museum or hillside site. Confirm tomorrow's Joshin Dentetsu train and preserve a city alternative if mountain weather already deteriorates.
Official information - 2
Day 2 — full heritage day
Tomioka Silk Mill by private railway
Take Joshin Dentetsu to Joshu-Tomioka and allow time for the town walk, current admission and interpretation. Enter only open buildings and follow conservation photography rules. Return before the sparse evening period rather than adding a distant safari or mountain drive.
Official information - 3
Day 3 — civic and food day
Maebashi, local culture and a weather-safe programme
Use the correct Maebashi-area station and choose museums, the centre and Tone River environment. Add Akagi only with confirmed transport and road conditions. A rail-based day is preferable to an improvised drive into fog, ice or evening snow.
Official information - 4
Day 4 — central onsen slope
Shibukawa transfer and Ikaho stone steps
Take the scheduled bus from Shibukawa and leave luggage before walking the stone-step district. Select one staffed bath or ryokan, learn its washing and tattoo policy and keep phones out of changing areas. Do not rush Haruna after dark.
Official information - 5
Day 5 — northwestern transfer
Agatsuma valley to Kusatsu
Travel by the named train and bus connection or a properly equipped car. Check in before walking Yubatake and the town. Keep behind barriers, respect steam and ice, and confirm each bath separately. An evening bath is optional, never a medical treatment target.
Official information - 6
Day 6 — one Kusatsu or Agatsuma module
Onsen culture without a rushed valley circuit
Choose a demonstration, nature interpretation, staffed day bath or short open walk. Do not combine Shima, Manza and Kusatsu on sparse buses. If volcanic, snow or wind restrictions apply, stay within the open town and protect the next day's departure.
Official information - 7
Day 7 — reposition to Minakami
Rail transfer and exact accommodation pickup
Move through Takasaki or the published corridor to Jomo-Kogen or Minakami Station as appropriate. Confirm the hotel's pickup point and tomorrow's ropeway or outdoor operator. Do not confuse the shinkansen and conventional stations or assume a late taxi.
Official information - 8
Day 8 — weather decision
Tanigawa ropeway visit or prepared mountain route
Use the ropeway only if it operates. Sightseeing visitors remain near open facilities; hikers start only with suitable forecast, equipment, route and descent margin. Cloud, lightning, snow or strong wind means a valley museum, onsen or town day instead.
Official information - 9
Day 9 — seasonal branch
Katashina and Oze preparation, or a second Minakami day
In the official Oze season, transfer only with confirmed trailhead transport, restrictions, hut or return and current route conditions. Otherwise remain in Minakami for an operated activity or staffed onsen. Never treat a closed access road as a walking shortcut.
Official information - 10
Day 10 — protected return
Early departure with snow and mountain buffer
Leave the northern base on an early confirmed service. Keep time for delayed bus or train, return rental equipment and reach Takasaki or Tokyo before a critical connection. Do not place an international flight after the last mountain bus.
Official information

Best time to visit
Spring
Lowland flowers and mountain snowmelt
Takasaki, Maebashi, Tomioka and Ikaho become comfortable before high trails. Oze access, huts and boardwalks may still be closed or snow-covered, and Tanigawa retains winter conditions. Check the actual opening season rather than treating blossom as proof of mountain spring.
Summer
Oze season with heat, storms and demand
Oze and highlands attract walkers while Takasaki and valleys can be very hot. Reserve buses and huts, start early, carry water and leave boardwalks before thunderstorms. Typhoon rain can close roads, rivers, ropeways and trails; an onsen is not a substitute shelter during an evacuation order.
Autumn
Foliage across different elevations
Colour moves from Oze and Tanigawa to Kusatsu, Ikaho and cities, so one peak date cannot describe Gunma. Weekends crowd buses, roads and ropeways; first snow or frost can reach high areas. Reserve essential transfers and finish hikes before short daylight.
Winter
Onsen and snow under real road constraints
Kusatsu, Minakami and high passes receive snow, ice and wind. Baths remain attractive, but buses, ropeways, ski lifts and roads may change. Use winter-equipped transport, avoid unfamiliar night driving and retain a full city or staffed-inn alternative when warnings escalate.

Getting there and around
Tokyo to Takasaki and Maebashi
Joetsu and Hokuriku shinkansen services make Takasaki the main fast gateway. Maebashi requires an onward conventional train or bus; Takasaki, Shin-Maebashi and Maebashi are distinct stations.
Regional passes do not automatically cover Joshin Dentetsu, every bus or a reserved onsen shuttle. Confirm operator, platform and final connection before leaving the urban hub.
Kusatsu, Agatsuma and Ikaho buses
Kusatsu usually connects by bus from Naganohara-Kusatsuguchi or other published gateways. Ikaho connects from Shibukawa and selected routes. Neither rail station is the onsen centre.
Reserve where required and watch the last bus. Snow, traffic and road controls extend journeys. A taxi across valleys can be scarce and expensive, so do not use it as an unconfirmed fallback.
Tomioka and western Gunma
Joshin Dentetsu links Takasaki with Joshu-Tomioka and other western stops. Service pattern, ticketing and walking distance differ from JR. Build the heritage day around its actual timetable.
Myogi, safari facilities and rural heritage require separate buses, taxi or car. Drivers use visitor parking, avoid narrow village lanes and check rockfall, snow and event traffic.
Minakami and Tanigawa
Jomo-Kogen shinkansen station, Minakami conventional station and Doai are not interchangeable. Match the hotel, ropeway or operator to the correct transfer and reserve a shuttle when offered.
Ropeway, ski lift and outdoor operator have separate weather decisions. A transport ticket does not certify mountain safety. Always retain the final descent and return connection.
Oze trailheads and private-vehicle restrictions
Gunma-side access commonly uses Katashina and a designated trailhead connection, but seasonal buses, road controls and private-car restrictions change. Use the Oze authorities and transport operators for the current year.
Choose the exact route, return or hut before boarding. Heavy packs, wet boardwalks, snow and distance matter. Never enter before official opening or depend on mobile reception for rescue navigation.

Local food recommendations
7 local food recommendations
Takasaki pasta
Takasaki has a strong restaurant pasta culture, but styles, portions and participating campaigns vary. Choose a current restaurant rather than expecting one official recipe. Wheat, dairy, egg, meat and shellfish may be present; ask before ordering.
Official informationJoshu wheat udon and okkirikomi
Gunma's wheat culture appears in udon and okkirikomi, a wide-noodle stew with vegetables. Broth, miso or soy, meat and seasonal produce differ by household and restaurant. Wheat and soy are common, and fish stock may be used.
Official informationYaki-manju
Steamed wheat buns are skewered, grilled and coated with a sweet-savoury miso glaze. They usually contain no sweet bean paste, though versions differ. Eat fresh, expect wheat and soy, and verify the shop rather than assuming every festival stall is identical.
Official informationKonnyaku cuisine
Gunma is closely associated with konnyaku production, offered as sashimi-style slices, dengaku and in simmered dishes. Sauce and stock can contain soy, wheat or fish. Texture does not make it calorie-free or medically therapeutic; follow package storage and chew carefully.
Official informationMizusawa udon
The Mizusawa area near Ikaho is known for firm wheat noodles, often served cold with dipping sauce. Shop days, queues, sesame sauce and tempura differ. Confirm bus timing before a meal and ask about wheat, sesame, shellfish and frying oil.
Official informationShimonita negi and local sukiyaki
Shimonita green onions are seasonal and protected by actual growing and distribution conditions. Restaurants may pair them with konnyaku and Joshu beef in sukiyaki. Ask the current origin, reserve in season and note beef, egg, soy and alcohol-based seasoning.
Official informationOnsen manju
Hot-spring towns sell steamed buns with bean paste, but makers, colours, shelf life and ingredients vary. Buy from an identified shop, check wheat and possible dairy or egg, and do not assume a warm display means the product can remain unrefrigerated indefinitely.
Official informationFrequently asked questions
Can I visit Kusatsu, Ikaho and Minakami in one day?
No sensible public-transport day connects all three. They occupy different valleys with infrequent buses and winter risk. Choose one onsen base and use Takasaki as the transfer point between modules.
Can I wear a swimsuit in an onsen?
Usually not in a traditional shared bath unless the facility explicitly permits it. Wash first, keep towel and hair out of the water and follow the posted policy. Mixed bathing, private baths and pool-style facilities have different rules.
What if I have tattoos?
Policies vary by facility. Some allow tattoos, covers or private baths; others do not. Check the exact bath in advance and do not argue with staff. A staffed day-use bath can provide clearer guidance than a small community bath.
Does the Tanigawa ropeway make the summit easy?
No. It reduces elevation only. Weather, exposed terrain, snow, navigation and final operating time remain. Sightseeing at an open station and hiking to a summit are different activities.
Is Oze open all year?
No. Access, buses, huts, bridges and routes have operating seasons and snow conditions. Check the current official information and never enter through a closed road or assume a boardwalk is snow-free.
Do I need a rental car?
Not for Takasaki, central Maebashi, Tomioka, central Ikaho or Kusatsu with planned buses. It helps dispersed Akagi, Agatsuma and northern sites, but winter experience, equipment, parking and closure compliance are essential.
Are winter tyres enough in heavy snow?
No. Ice, whiteout, chain controls, avalanche work and closure can stop even a suitable vehicle. Confirm chains and insurance, clear the vehicle fully, avoid night mountain roads and switch to public transport or cancel.
Can an onsen treat a medical condition?
This guide makes no medical claim. Mineral water and heat affect people differently. Follow time and temperature guidance and consult a qualified professional about cardiovascular, pregnancy, skin, mobility or other concerns.

Official sources
- 群馬県観光公式サイト 心にググっと観光ぐんま (2026-08-14)
- 高崎観光協会 (2026-08-14)
- 前橋観光コンベンション協会 (2026-08-14)
- 草津温泉観光協会 (2026-08-14)
- 渋川伊香保温泉観光協会 (2026-08-14)
- 富岡製糸場 公式サイト (2026-08-14)
- みなかみ町観光協会 (2026-08-14)
- 谷川岳ロープウェイ (2026-08-14)
- 尾瀬保護財団 (2026-08-14)