24-hour stunning views, blissful hot springs, over 40 types of buffet, Japan's highest sulfur concentration.

An Onsen Property boasting one of the finest baths in the Kanto region, located at an altitude of 1800m, where you can fully enjoy nine natural wooden Onsen. Featuring Japan's highest sulfur concentration, the milky white cloudy hot spring water naturally gushes from the ground. With an overwhelming daily flow of 5.4 million liters, the Onsen is offered in a free-flowing style. From the "Gokurakuyu" bath, where the scenery changes every hour of the day, you may even encounter a sky full of stars. For dinner, enjoy a balanced buffet menu of over 40 dishes, including Japanese, Western, and Chinese cuisine, under the theme "Mago wa Yasashii."

  • Despite it being March, as soon as we entered the Manza Onsen area, we were greeted by heavier snowfall than expected and a stunning winter wonderland. We got close but took a wrong turn, so we called the front desk. We called about twice while they guided us using landmarks, and each time they kindly gave careful directions, allowing us to arrive safely at the property. Our Room was the newly renovated “Mori no Yakata – Western-style Room,” so it was very clean inside. A humidifier and a Dyson Hot+Cool were also provided. Most importantly, the Onsen had a pleasant sulfur scent and left our skin feeling smooth and refreshed. Meals were buffet-style for both dinner and breakfast, and everything was delicious and satisfying. (I booked a 2-night Multiple Night Stay for therapeutic bathing after illness/surgery, but the food really boosted my appetite—I even had extra servings of rice at every meal.) If I have the chance, I’d love to visit again in a different season.

    Yahoo!トラベルユー... 3/17/2026
  • I made a last-minute Reservation the day before on a whim. We had previously stayed at another Hotel in Manza as a family, and this time we traveled with my parents as well—three generations together. Since the Hotel we stayed at before was fully booked, we chose this Ryokan because it had availability. It turned out to be the perfect choice.Onsen Quality The Onsen water was excellent—milky white, silky-smooth, and rich in sulfur. Even with atopic dermatitis, I could soak without any stinging sensation. The open-air bath requires about an 80-meter walk outside. There is no washing area there, so it’s a bit inconvenient; we used the large public bath next to the lobby first to wash and warm up before heading out. Except during cleaning hours, it’s available 24 hours a day, so we enjoyed it many times. It’s also available even before check-in, which was great—we could soak right after arriving.Room We stayed in a Japanese-Western style Room. It was clean and comfortably warm. There were two beds provided, and futons were laid out in the tatami area. The Room was spacious enough for four of us to relax comfortably.Meals They exceeded our expectations. The buffet offered carefully seasoned dishes across the board—Japanese cuisine, mountain vegetables, soba noodles, and fresh fish—which suited our family well since we don’t like greasy food. There was also steak grilled on the spot. For children, there were pizza and fried chicken as well. Since our kids also like Japanese food, everyone was very satisfied. Breakfast included a seafood rice bowl station, and strawberries were available among the fruit selection too—it felt like excellent value for the price.We ended up liking this Accommodation even more than the one we originally planned to book, so we will definitely stay again next time. Thank you very much.”

    Yahoo!トラベルユー... 3/16/2026

Facilities and Services

See All
  • Hot spring
Open-air bath / Free-flowing hot spring / Large public bath / Private bath / Free shuttle service / Room service
IN15:00~19:00
OUT10:00
Number of rooms164 rooms
PetNot allowed
Your childPermitted

[Standard Plan] Onsen Getaway with Natural Hot Spring (Dinner and Breakfast Included) <AA001>

IN 15:00~19:00
OUT 10:00
¥28,820
Dinner and Breakfast included ; 2 peopleTax included¥23,348
(USD 146.50)

[Dinner Upgrade Plan] Limited-time offer! All-you-can-eat red snow crab at the dinner buffet (Dinner & Breakfast Included) <CA003>

IN 15:00~19:00
OUT 10:00
¥34,320
Dinner and Breakfast included ; 2 peopleTax included¥27,808
(USD 174.49)

[Standard Plan] Onsen Getaway with Natural Hot Spring (Dinner and Breakfast Included) <AA001>

IN 15:00~19:00
OUT 10:00
¥29,920
Dinner and Breakfast included ; 2 peopleTax included¥24,238
(USD 152.09)

[Dinner Upgrade Plan] Limited-time offer! All-you-can-eat red snow crab at the dinner buffet (Dinner & Breakfast Included) <CA003>

IN 15:00~19:00
OUT 10:00
¥35,420
Dinner and Breakfast included ; 2 peopleTax included¥28,698
(USD 180.07)

[Standard Plan] Onsen Getaway with Natural Hot Spring (Dinner and Breakfast Included) <AA001>

IN 15:00~19:00
OUT 10:00
¥31,020
Dinner and Breakfast included ; 2 peopleTax included¥25,128
(USD 157.67)

[Dinner Upgrade Plan] Limited-time offer! All-you-can-eat red snow crab at the dinner buffet (Dinner & Breakfast Included) <CA003>

IN 15:00~19:00
OUT 10:00
¥36,520
Dinner and Breakfast included ; 2 peopleTax included¥29,588
(USD 185.66)

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Recommended Accommodation For Honeymoon

Introduction of the Accommodation

Panorama
Exterior
Panorama
Exterior
At an altitude of 1800 meters, visit Manza Onsen for beauty, health, and relaxation.

Manza Onsen, a place that has long provided relaxation to people as a therapeutic hot spring site. Many have been healed by the miraculous healing power of its highly effective onsen. At Nisshinkan, we aim to offer a property that provides health not only through the onsen but also through various aspects such as meals, exercise, and the environment, ensuring the well-being of both mind and body.

Facilities and Equipment of Accommodation

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

Basic Information

Card information
VISA / MASTER / JCB / AMEX / DINERS / UnionPay
Pets
Not allowed
Breakfast【Breakfast】Restaurant (Buffet)
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
Esthetic Massage
None
Fitness gym
None
Public Bath
The number of Public Bath
8
Business Hours
00:00~24:00
Hot spring
Available
Free-flowing
Available
Milky hot spring water
Available
Additional Information
100% natural hot spring (Add water)
Remarks
Open-air bath
The number of Open-air bath
6
Business Hours
00:00~24:00
Hot spring
Available
Free-flowing
Available
Milky hot spring water
Available
Additional Information
Remarks
Private bath
The number of Private bath
1
Business Hours
07:30~21:30
Hot spring
Available
Free-flowing
Available
Milky hot spring water
Available
Additional Information
Remarks
Usage Fee: 2,000 yen per hour (tax included) Reservations are accepted only on the same day.
Spring quality and benefits

Sulfate spring / Iron spring / Sulfur spring / Acidic spring

Neuralgia Rheumatism / Hypertension Stroke / Trauma Fracture Burn / Hemorrhoids / Gynecological Diseases / Diabetes Obesity / Post-illness Recovery Stress Relief / Motor Function Disorders / Joint Pain / Muscle Pain / Frozen Shoulder / Digestive System / Neuralgia / Wounds / Bruises / Gout / Arteriosclerosis / Cold Sensitivity

※Regarding the notation of "Gensen Kakenagashi"
In some facilities, heating or adding water for temperature adjustment may be performed. Additionally, please note that in some parts of the facility, the hot spring water may not be free-flowing from the source. For more details, please contact each facility.

SaunaNone
Hot stone spaNone
About Hygiene Measures
Measures to Prevent the Spread of COVID-19 At Manza Onsen Nisshinkan, we prioritize the health and safety of our guests and staff. To ensure a safe and comfortable stay, we are implementing the following preventive measures against COVID-19. ■ Main Measures Within the Facility  ・All staff, including customer service staff, wear masks.  ・Alcohol-based hand sanitizers are placed at key locations throughout the facility.  ・The front desk counter, shop cashier area, and restaurant drink corner are shielded with acrylic panels or vinyl sheets.  ・In the restaurant, vinyl gloves and sanitizers are provided, and buffet food items are covered with lids. ■ Measures for Employees  ・Employees wear masks and gloves.  ・Employees are required to wash hands, gargle, and sanitize their hands before starting work, before meals, and after using the restroom.  ・Temperature checks and health condition confirmations are conducted upon arrival at work, and employees record their status on a checklist.  ・Employees showing symptoms such as fever or cough are instructed to stay at home. ■ Requests to Guests  ・Please wear a mask when visiting the facility.  ・During your stay, please use the alcohol-based hand sanitizers placed at key locations within the facility to sanitize your hands.  ・Upon entry, we will check your temperature and health condition using a health check sheet.  ・Guests with symptoms such as fever, cough, sore throat, loss of taste or smell, or fatigue may be denied entry.  ・If you experience any symptoms or feel unwell during your stay, please inform a nearby staff member immediately. These measures may be updated in accordance with the policies of relevant authorities. We kindly ask for your understanding and cooperation to ensure a safe and pleasant stay.                                  May 29, 2020                                  Manza Onsen Nisshinkan

Reviews

Overall Score
4.10
(59)
  • Rooms & Amenities
    3.68
  • Facility
    3.80
  • Hospitality & Service
    4.17
  • Meals
    3.90
  • Onsen & Bath
    4.81
  • Satisfaction
    4.24

*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 Prefecture2401, Oaza Kanbara, Tsumagoi Village, Agatsuma District
TEL:+81-279-97-3131

90 minutes by car from Usui-Karuizawa IC on the Joshinetsu Expressway.
[Closed during winter]

- National Route 292 (Shiga Kusatsu Highland Route) will be closed for the winter from 1:00 PM on Thursday, November 13, 2019. It will reopen at 10:00 AM on Friday, April 24, the following year.

- Prefectural Route 466 (Maki-Hoshimata Line) will be closed for the winter from 3:00 PM on Thursday, November 13, 2019. Due to a landslide, it will remain closed for the foreseeable future.

During the winter closure period, please use the Manza Highway (toll road).

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

Pickup and drop-off information
Available (Free)

Frequently Asked Questions

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