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- Shima Onsen Toyoshimaya
Relax and unwind at an accommodation by the clear stream of Shima River, enjoying hot springs from a private source.
Along the Shima River, enjoy 100% natural Onsen with three abundant private sources in various bathing facilities. Savor the Satoyama Kaiseki cuisine, featuring the bountiful mountain and river delicacies of Gunma.
The staff were very kind and helpful, which made our stay wonderful. With this Plan, we were able to use the private bath free of charge. Since there are only a few guest rooms, we enjoyed a calm, relaxing atmosphere where we could clearly hear the sound of the clear stream. We would love to visit again if we have the chance.
にんたん 8/22/2026We stayed with our 4-month-old baby.It was great that baby items were available to rent.We chose the Room “Fukujuso,” and being right beside the river, the views were amazing both from the Room and from the private open-air Onsen bath.Because you can hear the river constantly, it pleasantly masked our baby’s crying, so we could stay without worrying about disturbing others.The Onsen temperature felt a bit too hot for a baby, but we were told it was fine to adjust the temperature in the in-room bath by adding cooler shower water, which made it easy to bathe together without hesitation.Both the large public bath and the private reservable bath had a wonderful atmosphere, and throughout our stay we could truly relax while enjoying abundant nature right in front of us—it was fantastic.This is an Accommodation we would definitely like to visit again.
Kiri.h 9/3/2026
Facilities and Services
See All- Hot spring
- Room with Open-Air Bath
- Spa facility
| IN | 15:00～18:00 |
|---|---|
| OUT | 10:00 |
| Number of rooms | 15 rooms |
| Pet | Not allowed |
| Your child | Permitted |
Photo
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Notice from the Accommodation
- Entry to the accommodation is available from 3:00 PM. With the paid "Early Check-in Plan," you can enter from 2:00 PM. This can be arranged during reservation or on-site (1,500 yen per person).
- The road in front of our accommodation, Toyoshimaya, is a bus route. However, near our facility, the road is narrow and parking may be difficult to locate or access.
To assist with this, staff will be stationed on the road at 3:00 PM (check-in time) to guide you safely. Please rest assured.
However, staff may need to leave temporarily to assist other guests arriving earlier. In such cases, please do not hesitate to call us at 0279-64-2134 for assistance.
* Our accommodation does not have an elevator and may not be suitable for elderly guests or those with physical disabilities.
* We may contact you by phone for confirmation or other communications using these numbers: 0279-64-2134 / 0279-64-2131.
* Bringing outside items into the accommodation is generally prohibited; please inquire if necessary.
* Additional amenities may incur extra charges; please ask our staff on-site for details.
* Payments under 3,000 yen made on-site must be settled in cash.
* Guests are required to comply with our Accommodation Terms and Conditions during their stay with us.
- Twin
- 15㎡
- Capacity 1~2 people
- Twin
- 13㎡
- Capacity 1~2 people
- Japanese-style Room
- Capacity 1~2 people
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Introduction of the Accommodation
Onsen
At Toyoshimaya, we own three private Onsen sources, providing abundant spring water. Without adding water or circulation, the spring water is used directly, always fresh, filling all baths in the facility, including large public baths, private baths, and rooms with open-air baths. Shima Onsen is said to derive its name from its ability to cure forty thousand ailments. Please relax and enjoy.
Meal
Toshimaya Original 'Satoyama Kaiseki' primarily uses mountain delicacies, river treasures, and fresh vegetables from local farmers.
We offer various types of Rooms to suit your stay style, including Rooms with open-air Onsen by the river, Rooms with new beds, and compact twin Rooms.
In front of you lies the pristine Shimagawa River. Enjoy the beautiful scenery and refreshing air. Immerse yourself in the changing seasons with all your senses.
Facilities and Equipment of Accommodation
- The room
- Hot Springs & Baths
- Facilities & Services
- Meal
Basic Information
| Taxes | - A Hot Spring Tax of 150 yen per adult will be charged separately. |
|---|---|
| Card information | VISA / MASTER / JCB / UnionPay |
| Pets | Not allowed |
| Breakfast | There is no information about breakfast. |
| Your child | You can stay. Reservations exceeding the room capacity may be declined. |
| Room service | Not available |
| Common amenities |
|
| Facilities and Features |
|
| Esthetic Massage | Available |
| Fitness gym | None |
| Public Bath |
|
| Open-air bath |
|
| Private bath |
|
| Room with Open-Air Bath |
|
| Room with Onsen Indoor Bath |
|
| Spring quality and benefits | Sodium-Calcium Chloride-Sulfate Hot Spring Relieves digestive issues, aids in fatigue recovery, and provides moisturizing and warming effects. ※Regarding the notation of "Gensen Kakenagashi" |
| Sauna | None |
| Hot stone spa | None |
| Others | A cancellation fee of 100 yen will be charged at the time of reservation. |
Reviews
- Rooms & Amenities4.46
- Facility4.29
- Hospitality & Service4.68
- Meals4.56
- Onsen & Bath4.85
- Satisfaction4.63
*Reviews that have been translated from Japanese.*
*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*
Access Information
Gunma Prefecture3887 Shima, Nakanojo-machi, Agatsuma-gun
TEL：+81-279-64-2134
Public Transportation: From JR Agatsuma Line Nakanojo Station, take the Kanetsu Kotsu Bus bound for "Shima Onsen," get off at Yamaguchi Bus Stop, and walk 1 minute.
- Parking Information
- Fee
- Free for guests
- Parking time
- ---
- Parking space
- No restrictions
- Number of parking spaces
- 20 cars available outdoor
- Valet service
- Available (Free)
- EV chargers are available on-site.
- Pickup and drop-off information
- Unavailable
Frequently Asked Questions
Please provide information about Open-air bath.
・Business Hours: 15:00～10:00 ・Hot spring: Available ・Free-flowing: Available ・Cloudy hot spring water: None ・Supplementary information: 100% natural hot spring
What kind of facilities and features are available?
There are the following facilities and features. Hot spring・Rooms with open-air baths available・Open-air bath・Free-flowing hot spring・Large public bath・Private bath・Spa facility
I would like to know the access information.
Public Transportation: From JR Agatsuma Line Nakanojo Station, take the Kanetsu Kotsu Bus bound for "Shima Onsen," get off at Yamaguchi Bus Stop, and walk 1 minute.
Is parking available?
・Fee： Free for guests ・Parking space： Length --- Vehicle width --- Vehicle height --- ・Number of parking spaces： 20 cars ・Valet Service： Available (free) - Valet parking is available. Please bring your car to the front entrance, and we will take care of it for you. - EV chargers are available on-site.
Please provide information about Room with Onsen Indoor Bath.
・Hot spring: Available ・Free-flowing: Available ・Cloudy hot spring water: None ・Supplementary information: 100% natural hot spring Sankirai Guest Room
Please provide information about Private bath.
・Business Hours: 15:00～22:00 ・Hot spring: Available ・Free-flowing: Available ・Cloudy hot spring water: None ・Supplementary information: 100% natural hot spring For private bath use, please make a reservation in advance or at check-in (additional fee applies).
Do you have esthetic massages?
Yes, there is.
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