Enjoy the Tongue-Cut Sparrow Theater, rejuvenating hot springs for beautiful skin, and exquisite cuisine featuring Gunma ingredients at a five-star Property.

The Property, located a 20-minute drive from the World Heritage Site Tomioka Silk Mill, offers WiFi in all guest rooms and features two separate large baths for men and women. Isobe Onsen has long been cherished by travelers and spa-goers, with its high-quality chloride bicarbonate spring water known as "beauty water" and "healing water for colds." From the special pure Japanese-style room on the top floor, guests can enjoy seasonal landscapes. Additionally, the open-air baths include a fragrant hinoki cypress bath and a rock bath, providing a delightful bathing experience. The daily screening of the "Tongue-Cut Sparrow" story is enjoyable for both children and adults. Meals are prepared using the finest local ingredients from Gunma, ensuring safe and reliable dining.

  • Both the meals and the baths were excellent!The three kinds of local sake we ordered separately were also delicious!The robot theater was fun!Ochun-chan was adorable too!The gallery’s sculptures by Takamura Koun were magnificent.My husband kept saying what a great Accommodation it was, and he really seemed to love it.We’d like to stay again when we visit Gunma.

    Yahoo!トラベルユー... 8/3/2026
  • I have stayed here four or five times, and I was satisfied again this time. The Onsen is great, and both dinner and breakfast were delicious; the miso soup and simmered dishes were especially tasty, with a rich broth. It was disappointing that the open-air bath in the men’s bath on the second floor was unavailable, but I enjoyed the open-air bath on the first floor instead. I would like to visit again.

    Yahoo!トラベルユー... 8/9/2026

Facilities and Services

See All
  • Hot spring
  • Room with Open-Air Bath
  • Spa facility
Open-air bath / Free-flowing hot spring / Large public bath / Sauna / Within a 5-minute walk from the station / Outdoor pool / Free shuttle service / Room service
IN15:00~19:30
OUT10:00
Number of rooms115 rooms
Your childPermitted
PetNot allowed
Cage rental is available at the on-site pet kennel (for a fee).
Laxsui - Japanese-style room with Simmons twin beds
Jul 2021Renovated
  • Japanese-style Room
  • 40㎡
  • Capacity 1~4 people

1 Night with Breakfast【Relax at Jōshū's Famous Onsen 'Isobe Onsen'】- Enjoy the Skin-Beautifying Waters - Breakfast features a variety of 'Buffet Dishes'.

IN 15:00~22:00
OUT 10:00
¥33,000
Breakfast included ; 2 peopleTax included¥26,400
(USD 165.47)

Most popular! 【Standard Plan】 'Joshu Beef Sukiyaki' filled with seasonal Gunma ingredients and fresh seafood 'Grilled Abalone'.

IN 15:00~19:00
OUT 10:00
¥44,000
Dinner and Breakfast included ; 2 peopleTax included¥35,200
(USD 220.63)

[Room Assignment Plan] ~Affordable Stay~

IN 15:00~19:00
OUT 10:00
¥35,200
Dinner and Breakfast included ; 2 peopleTax included¥28,160
(USD 176.50)

1 Night with Breakfast【Relax at Jōshū's Famous Onsen 'Isobe Onsen'】- Enjoy the Skin-Beautifying Waters - Breakfast features a variety of 'Buffet Dishes'.

IN 15:00~22:00
OUT 10:00
¥39,600
Breakfast included ; 2 peopleTax included¥31,680
(USD 198.57)

Savor the local gourmet cuisine of Gunma 【Indulge in Jōshū Delights】 Jōshū Beef Sukiyaki, Mugi Kaze Chicken Grilled, Hand-Cut Noodles, Konnyaku Sashimi, and more.

IN 15:00~18:00
OUT 10:00
¥52,800
Dinner and Breakfast included ; 2 peopleTax included¥42,240
(USD 264.76)

Best-Selling Stays

Accommodation Suitable For Large Groups

Recommended Accommodation For Student Travel

Accommodation With Baby-Friendly Plan

Rooms With Open-Air Baths Popular At Stays

Introduction of the Accommodation

Indulge in the Isobe hot springs to your heart's content.

At Isobe Onsen, it has long been cherished by travelers along the Nakasendo road and therapeutic bathers, and has been loved by many notable figures. This high-quality onsen features chloride bicarbonate spring water, known as the "beauty skin bath" for its smooth feel and the "cold remedy bath" for its exceptional warmth. There are two large baths available for both men and women, so please enjoy to your heart's content.

Blending the essence of tradition with modern elegance

A spacious lobby filled with light, reflecting beautifully on the water's surface. A lounge and public spaces offering a panoramic view of the vibrant garden. The expansive comfort and warm atmosphere harmonize gently with smiling faces. Blending the traditional essence of Japanese elegance with modern charm.

Facilities and Equipment of Accommodation

  • The room
    The room
  • Hot Springs & Baths
    Hot Springs & Baths
  • Facilities & Services
    Facilities & Services
  • Meal
    Meal

Basic Information

TaxesThe Hot Spring Tax is 150 yen, applicable only to adults (junior high school age and above).
Card information
VISA / MASTER / JCB / AMEX
Pets
Not allowed
Cage rental is available at the on-site pet kennel (for a fee).
BreakfastThere is no information about breakfast.
Your child
You can stay.
Room service
Available for use
Common amenities
  • ○ Shampoo · conditioner
  • ○ Body soap · soap
  • ○ Towel · Bath towel
  • ○ Body towel · sponge
  • ○ Toothbrush set
  • ○ Comb · Brush
  • × Shower cap
  • ○ Hair dryer
  • × Shaving
  • × Shaving Gel/Foam
  • × Bath additives
  • ○ Yukata
  • × Nightwear
  • × Bathrobe
  • ○ Slippers
  • × facial cleanser
  • × Toner
  • × Lotion
  • × Makeup remover
  • × Cotton swab
  • × Cotton
  • × Clothing deodorizing spray
  • ○ Refrigerator
  • ○ Minibar
  • ○ Electric kettle
  • ○ Tea set (free)
  • ○ Television
  • ○ Safe
  • × Scale
  • × Trouser press
  • × Free morning edition
  • × Pay-per-view broadcast
  • × Satellite broadcasting
  • × Video on Demand
  • × Radio
  • × CD player
  • × DVD player
  • × Blu-ray player
  • × Speakers for portable audio
  • × In-room PCs and tablets
Facilities and Features
  • ○ Hot spring
  • ○ Rooms with open-air baths available
  • ○ Open-air bath
  • ○ Free-flowing hot spring
  • ○ Large public bath
  • × Private bath
  • ○ Sauna
  • × Ganbanyoku (rock bathing)
  • ○ Within a 5-minute walk from the station
  • × Within a 5-minute walk to the convenience store.
  • × Indoor pool
  • ○ Outdoor pool
  • × Pet-friendly
  • ○ Spa facility
  • × Fitness
  • ○ Free shuttle service
  • × Shuttle Service (Paid)
  • ○ Room service
  • × Room Service Available 24 Hours
  • × Barrier-free
  • × Childcare services
Outdoor pool
Available period
---
Business Hours
10:00~17:00
Final admission time
---
Fee(Guest)
Free
Fee(Non-guest)
---
Children's pool
Available
Age restriction
Small children must be accompanied by an adult.
Pool shape
Irregular shape
Pool size
Length 14m
Width 7m
Water depth 100cm
Open only during the summer vacation period. ※ As it is outdoors, it will be closed on rainy days or when the temperature is low.
Esthetic Massage
Available
Fitness gym
None
Public Bath
The number of Public Bath
4
Business Hours
---
Hot spring
Available
Free-flowing
Available
Milky hot spring water
None
Additional Information
(Heating, Adding Water)
Remarks
Open-air bath
The number of Open-air bath
4
Business Hours
---
Hot spring
Available
Free-flowing
None
Milky hot spring water
None
Additional Information
(Heating, Adding Water)
Remarks
Room with Open-Air Bath
Hot spring
None
Free-flowing
None
Milky hot spring water
None
Additional Information
(Heating, Adding Water)
Remarks
The private open-air bath in the room is not an Onsen.
Spring quality and benefits

Chloride spring

Neuralgia, muscle pain, joint pain, frozen shoulder, motor paralysis, joint stiffness, bruises, sprains, chronic gynecological diseases, hemorrhoids, cold sensitivity, post-illness recovery period, fatigue recovery, health promotion, cuts, burns, chronic skin diseases, weak constitution, chronic gynecological diseases.

SaunaAvailable
Hot stone spaNone
About Hygiene Measures
Our Measures Against COVID-19 To ensure our guests have a comfortable stay, we are implementing infection prevention measures. We kindly ask for your cooperation during your stay, and we appreciate your understanding. ■ Measures at the Entrance, Front Desk, and Public Areas - Acrylic boards are installed at the front desk. - Frequently touched items are regularly disinfected. - Daily disinfection and cleaning are conducted around the lobby. - Preventive measures are also in place inside elevators. - Hairdryers are frequently disinfected. ■ Measures in Guest Rooms - Air purifiers are installed in all rooms, and their filters are cleaned daily. - Remote controls are disinfected with alcohol regularly. - High-touch areas such as doorknobs are thoroughly disinfected. ■ Measures for Staff - All staff members wear masks. - Daily temperature checks are conducted upon arrival at work. - Staff wash their hands every hour. We are committed to ensuring a safe environment for our guests. We sincerely hope for the situation to improve soon.

Reviews

Overall Score
4.41
Good (64)
  • Rooms & Amenities
    4.33
  • Facility
    4.28
  • Hospitality & Service
    4.48
  • Meals
    4.42
  • Onsen & Bath
    4.50
  • Satisfaction
    4.44

*Reviews that have been translated from Japanese.*

*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*

Access Information

Address
Gunma PrefectureAnnakashi Isobe 1-12-5
TEL:+81-27-385-0085

10 minutes by car from the Matsui-da Myougi Interchange on the Joshinetsu Expressway.
5 minutes on foot from JR Isobe Station.
20 minutes by taxi from Annaka-Haruna Shinkansen Station.

Parking Information
Fee
Free for guests
Parking time
---
Parking space
No restrictions
Number of parking spaces
400 cars available outdoor
Valet service
Unavailable

Pickup and drop-off information
Available (Free)Shuttle Service is free only at JR Isobe Station.

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