Exterior
Open-air bath at night
施設画像
施設画像
施設画像
59 photos

Manza Kogen Hotel

Gunma Prefecture／Manza Onsen
¥9,508～
No meals ; 2 peopleTax included¥7,708〜
(USD 48.37)

A journey of hot spring hopping and gourmet dining, featuring four natural hot springs and locally sourced ingredients

This Property offers the unique experience of enjoying Onsen with different colors and water qualities from four distinct sources. In particular, the "Stone Garden Open-Air Bath," where you can enjoy milky white water, yellow water, and clear water, provides a special space unique to highland Onsen, accompanied by a magical landscape. Additionally, the quietly flowing time here offers a luxurious tranquility that cannot be experienced in the city. The Room accommodates up to 4 guests and includes free Wi-Fi access. There is also a buffet restaurant featuring an abundance of seasonal local ingredients.

3.90(64)
  • Make your first mixed-gender open-air bath a wonderful memory.

    We stayed as a couple.The open-air bath was outstanding—easily the best among all the Onsen Accommodations we’ve stayed at. The water quality was excellent, and we were able to fully enjoy Manza Onsen’s signature milky, cloudy waters to our heart’s content.It was our first time trying a mixed-gender open-air bath, but we decided to go in together “since we were here and wanted to make a memory.” We were a little nervous at first, but it turned into a truly fun experience and an unforgettable memory for us as a couple.When I asked a staff member who was cleaning the washing area by the open-air bath, they responded very politely, and I really appreciated the kind service.The meals were more than satisfying, and the Room was spacious and comfortable—there wasn’t anything to complain about.Before staying, I thought, “At this price point, it’ll probably be about what you’d expect,” but after actually staying here, it far exceeded our expectations. It honestly felt like twice the value for money—we’re extremely satisfied.Next time, we’d love to visit in another season and enjoy these wonderful hot springs again.

    Yahoo!トラベルユー... 7/24/2026
  • We stay here every year.

    Nice place. I visit once or twice every year. This time was my first visit in a year. The Onsen at Manza Kogen Hotel is excellent. I went in three times that day and twice the next day. It was great to relax in the Onsen with my companion. I’ll be back!

    Yahoo!トラベルユー... 7/14/2026

Facilities and Services

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  • Hot spring
Open-air bath / Large public bath / Free shuttle service
IN15:00～29:00
OUT11:00
Number of rooms145 rooms
PetNot allowed
Your childPermitted

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Notice from the Accommodation

Notice of Changes to Onsen Operating Hours

Thank you very much for your continued patronage of Manza Kogen Hotel.
To further strengthen safety and management of the bathing environment at our Facility, we will change the operating hours for the indoor baths and open-air baths as follows.
We apologize for any inconvenience this may cause to guests who use the baths late at night or early in the morning. We will continue striving to provide a Facility that you can use safely and comfortably, and we kindly ask for your understanding and cooperation.
Thank you again for your continued support.

1. Effective Date
From Tuesday, September 1, 2026

2. Operating Hours
Before: Open 24 hours
After: 5:00 A.M. – 12:00 MID

3. Guest Inquiries Regarding This Matter
Contact: Manza Kogen Hotel (Main Line)
Phone: 0279-97-3111
Hours: 10:00 A.M. – 5:00 P.M. (Daily)

【Value Rate】(Room Only) Experience the feeling of hot spring hopping with four sources at the Property.

IN 15:00～24:00
OUT 11:00
¥9,508～
No meals ; 2 peopleTax included¥7,708〜
(USD 48.37)

【Basic Rate】(Room only)

IN 15:00～24:00
OUT 11:00
¥11,886～
No meals ; 2 peopleTax included¥9,638〜
(USD 60.48)

【Value Rate】(Room Only) Experience the feeling of hot spring hopping with four sources at the Property.

IN 15:00～24:00
OUT 11:00
¥11,240～
No meals ; 2 peopleTax included¥9,106〜
(USD 57.14)

【Basic Rate】(Room only)

IN 15:00～24:00
OUT 11:00
¥14,050～
No meals ; 2 peopleTax included¥11,386〜
(USD 71.45)

【Value Rate】(Room Only) Experience the feeling of hot spring hopping with four sources at the Property.

IN 15:00～24:00
OUT 11:00
¥12,968～
No meals ; 2 peopleTax included¥10,512〜
(USD 65.97)

【Basic Rate】(Room only)

IN 15:00～24:00
OUT 11:00
¥16,210～
No meals ; 2 peopleTax included¥13,140〜
(USD 82.46)

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Introduction of the Accommodation

Open-air bath with a rock garden

Enjoy Onsen with 4 sources and 12 baths.

A popular onsen property featuring the iconic "Stone Garden Open-Air Bath" with eight tubs and "Hyakusen no Yu," offering different water qualities between indoor and outdoor baths. Loved by people of all ages for therapeutic purposes. From the onsen, you can enjoy the seasonal beauty of nature, such as the sparkling starry sky in summer, vibrant autumn foliage, and snowy landscapes in winter.

Open-air bath with a rock garden
A time-forgetting hot spring experience

The "Sekitei Open-Air Bath" utilizes four private Onsen sources, offering rare yellow water, milky white water, and clear water, unique even in Manza Onsen. Combined with "Hyakusen no Yu," there are a total of 12 baths. You can enjoy the feeling of touring various Onsen while staying at the Hotel.

Starry sky
Encounter a sky full of stars

At an altitude of 1,800m, experience the clear air unique to high altitudes and the starry sky visible in Manza, free from surrounding lights. Enjoy gazing at the night sky of Manza while listening to a guide's explanation of constellations and the universe.

Facilities and Equipment of Accommodation

  • The room
    The room
  • Restaurant
    Restaurant
  • Facilities & Services
    Facilities & Services

Notice from the Accommodation

  • Notice of Roof Renovation Work

    Thank you very much for your continued patronage of Manza Kogen Hotel.
    We will be carrying out roof renovation work at the main building of Manza Kogen Hotel for the purpose of building maintenance, as outlined below.
    During the construction period, we will take every precaution to ensure safety; however, on certain days there may be construction noise and work involving a crane.
    We sincerely apologize for any inconvenience this may cause and kindly ask for your understanding and cooperation to ensure the safety and proper maintenance of our Facility.

    1. Construction Period
    Monday, July 13, 2026 – Friday, September 11, 2026
    2. Working Hours
    8:45 A.M. – 4:45 P.M.
    3. Details and Expected Impact
    During the construction period, we will take every precaution to ensure safety; however, construction noise may occur on certain days.
    In particular, noise is expected during the following period:
    (1) Scheduled Period with Construction Noise
    (i) Tuesday, July 21, 2026 – Tuesday, July 28, 2026
    (2) Scheduled Crane Work
    (i) One day between Friday, July 17 and Tuesday, July 21, 2026
    (ii) Thursday, July 30, 2026

    In addition, scaffolding and protective sheeting will be installed on parts of the building during the construction period.
    As a result, please note in advance that this may affect the exterior appearance of the building as well as views from some guest rooms.

  • Notice from the Facility

    Thank you very much for your continued patronage of Manza Kogen Hotel.
    To further strengthen safety maintenance and management of the bathing environment at our Facility, we will revise the operating hours of the indoor baths and open-air baths as follows.
    We apologize for any inconvenience to guests using the baths late at night or early in the morning, and we appreciate your understanding and cooperation as we continue striving to provide a safe and comfortable Facility for everyone.
    We sincerely appreciate your continued support.

    1. Effective Date
    From Tuesday, September 1, 2026

    2. Operating Hours
    Before: Open 24 hours
    After: 5:00 A.M. – 12:00 MID

    3. Inquiries Regarding This Change
    Contact: Manza Kogen Hotel (Main Line)
    Phone: 0279-97-3111
    Hours: 10:00 A.M. – 5:00 P.M. (Daily)

Basic Information

Card information
VISA / MASTER / JCB / AMEX / DINERS / UnionPay
Pets
Not allowed
BreakfastThere is no information about breakfast.
Your child
You can stay.
Room service
Not available
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
2
Business Hours
---
Hot spring
Available
Free-flowing
None
Milky hot spring water
Available
Additional Information
(Add water)
Remarks
As the hot spring source water is very hot, we add water to adjust the temperature.
Open-air bath
The number of Open-air bath
10
Business Hours
07:00~22:00
Hot spring
Available
Free-flowing
None
Milky hot spring water
Available
Additional Information
(Add water)
Remarks
As the hot spring source water is very hot, we add water to adjust the temperature. *Green season: Open 24 hours Winter season: 7:00 A.M. – 10:00 P.M. *From September 1, 2026, the opening hours will change. [Hours] 5:00 A.M. – 12:00 MIDNIGHT
SaunaNone
Hot stone spaNone
OthersThere is no air conditioning in the Facility.

Reviews

Overall Score
3.90
(64)
  • Rooms & Amenities
    3.64
  • Facility
    3.56
  • Hospitality & Service
    4.17
  • Meals
    3.39
  • Onsen & Bath
    4.61
  • Satisfaction
    3.98

*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 PrefectureManza Onsen, Tsumagoi Village, Agatsuma District
TEL：+81-279-97-1111

- Approx. 64 km (about 1 hr 20 min in normal traffic) via the Onioshidashi Highway and Manza Highway from the Usui-Karuizawa I.C. on the Joshinetsu Expressway.
- Approx. 79 km (about 1 hr 50 min in normal traffic) via Nakanojo and the Manza Highway from the Shibukawa-Ikaho I.C. on the Kan-Etsu Expressway.
*The Manza Highway and Onioshidashi Highway are toll roads.*

*Please note that nearby roads may be closed in winter or subject to traffic restrictions due to Mt. Shirane volcanic alert levels. For details, please contact the Hotel.*

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

Pickup and drop-off information
Available (Free)A free Shuttle Service is available from Karuizawa Station for guests only (advance Reservation required).
For details such as schedules, please contact the Hotel.

Frequently Asked Questions

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