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STAY GUIDE / SHIMA ONSEN · GUNMA
Shima Onsen Kashiwaya Ryokan
Three private-use baths, plus selected rooms with an open-air onsen of their own.
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A quiet arrival in Shima Onsen. Property photograph provided through Expedia Group.
Warm timber, tatami rooms and a balcony facing greenery give Kashiwaya a gentle river-valley rhythm. Leave room in the day for a bath, a meal and time doing very little. This 14-room inn in Gunma offers three private-use hot-spring baths to overnight guests without a separate charge. These are separate from selected rooms with their own open-air onsen, so choose the kind of privacy you want.
In this guide
The included private-use baths let you enjoy private bathing without booking a room with its own bath. The important choice is whether you are comfortable waiting for a shared private bath to become vacant, or want the independence of a bath belonging to your room.
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Choose Shima Onsen Kashiwaya Ryokan in Nakanojo, Gunma. Check the actual room description before booking.
01 / GUIDE
A slower stay beside the Shima River
Shima is a river-valley hot-spring town rather than a city stop. At Kashiwaya, warm wooden interiors, tatami rooms and seats facing the greenery invite you to slow down. Leave space between arrival, bathing and dinner instead of treating the inn as somewhere to sleep after a full day elsewhere.

A balcony scene at the property; choose a room description that explicitly includes a terrace if this matters to you.
02 / GUIDE
Three private baths, separate from the room you book
The three communal private open-air baths are available when vacant, without advance bath reservations. The official FAQ explains that an indicator shows when a bath is occupied; lock the bathing space while using it. This is private use of a facility shared between guests at different times, not a bath attached to every bedroom.
Kashiwaya explicitly welcomes guests with tattoos. Ask at arrival about current bathing hours and how to use the indicators, rather than planning around an assumed reserved time slot.
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Choose the room by bath and bedding
The official room descriptions distinguish Hana and Kame from the other categories. Availability and translated room names may differ between booking channels: match the facilities, not only the photograph.
Hana
Sleeping style: Twin beds
Bath distinction: Own open-air onsen
Kame
Sleeping style: Futons on tatami
Bath distinction: Own open-air onsen
Other room categories
Sleeping style: Varies by room
Bath distinction: Use the communal private baths; confirm individual bathroom facilities

A tatami-room example. The photograph is not assigned to Hana or Kame.

A room with beds; book by the named category and included facilities, not this example alone.
If you need a step-free route or particular bathroom facilities, confirm them with the inn before paying. Expedia lists no elevator. A room advertised with a terrace or footbath should not be read as automatically including a full private bathing tub.
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Meals are part of the booking decision
The inn describes seasonal, multi-course Japanese dinners. Decide whether you want dinner and breakfast included, then check the exact plan. The official site also offers a vegan option; request dietary arrangements in advance rather than assuming any rate can be adapted.

Meal example. Dishes change and are not a guarantee of what your booking includes.
For allergies, the official FAQ warns of shared-kitchen cross-contact and limits on accommodating severe allergies. Get a direct answer before choosing a non-refundable plan.
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Getting there and arriving in time
The official access page describes a train-and-bus route via Takasaki and Nakanojo. From Nakanojo, take the Shima Onsen bus and follow the inn's instruction to alight at Seiryu-no-Yu. The ryokan is near that stop. If you choose a direct highway coach instead, its dated ticket must match the Tokyo boarding point and the Shima stop you need.
Find Shima Onsen Kashiwaya Ryokan
3829 Shima, Nakanojo, Gunma. Official access guide
Check-in starts at 15:00 and check-out is at noon. Published arrival cutoffs differ between the official pages and Expedia, especially for dinner bookings. Use the deadline on your reservation and agree any late arrival with the inn in advance. Do not assume that a late train connection can be accommodated.
06 / GUIDE
Before you book
- Decide between shared private-bath access and a room with its own bath.
- Confirm beds or futons, bathroom facilities and any terrace requirement.
- Check dinner, breakfast, dietary arrangements and the arrival deadline.
- Read cancellation conditions and plan the final bus connection.
07 / GUIDE
Questions before a first stay
Are tattoos allowed?
Yes. The inn's official website explicitly welcomes tattooed guests.
Is a private bath necessarily in my room?
No. The three private-use baths are shared between guests at different times. Hana and Kame are specifically described as rooms with an open-air onsen.
Is dinner included?
Only if your chosen booking plan includes it. Check the meal details and arrival deadline together.
08 / GUIDE
Continue planning
Outside the inn, Shima’s river landscape gives you a reason to linger. The Shima Potholes reveal smooth hollows carved into the riverbed, while Lake Okushima offers forest-framed water whose blue colour changes with the light and season. Choose one landscape outing rather than assuming both are next to the ryokan, arrange the local transport and return, and view the river from permitted paths instead of climbing onto wet rocks.
See our Kanto regional guide and ryokan collection. If you are comparing Gunma bases, our Kusatsu guide and Naraya stay guide cover a separate destination; these are alternatives to plan deliberately, not next-door stops.
09 / GUIDE
Ready to choose your Kashiwaya stay?
Compare the actual room, meal plan and arrival conditions for your dates.
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