Exterior
Terrace
Guest Rooms
Sample Meal Options
Terrace
318 photos

Oigami Onsen Ryotei Kaichoro

Gunma Prefecture／Ikaho
¥123,904～
Dinner and Breakfast included ; 2 peopleTax included¥95,407〜
(USD 602.49)

Enjoy a private stay at this “secluded hot spring Accommodation for adults,” nestled in the Ikaho mountain range. All 8 Rooms feature an open-air bath.

Our inn is a hot-spring retreat for guests aged 20 and over. In the early Meiji era, the 14th proprietor, Yoshishige Fukuda, opened a new annex in Ikaho, Joshu—“Oku Ikaho Ryotei Kaichoro”—distinct in style from the family’s long-established inn. In “Kaichoro,” “Kai” signifies tranquility, and “Cho” expresses our wish for guests to spend their time here slowly and at ease; with that hope in mind, we chose this name. From our carefully crafted cuisine to refined pure Japanese-style rooms and high-grade rooms with an emphasis on design, all guest rooms feature a private open-air bath. We also offer a spa and reservable private open-air baths, ensuring you can fully enjoy your stay.

4.65 - Wonderful(104)
  • A truly special moment

    Thank you for a wonderful stay.From check-in to check-out,we never ran into anyone, even while getting around or dining.It truly felt like we had the place to ourselves,making our stay feel special.Every interaction was thoughtful,and we were very satisfied.The room, the food, the service—everything was excellent!We would love to stay again!

    たーつーのーりー 10/28/2026
  • Exceeds Expectations

    We had a truly wonderful stay.That said, this may be minor, but I’d like to mention two points I noticed.1. It would be great if the bath towels and other linens were upgraded to ones more fitting for a top-tier ryokan.2. The razor was a premium five-blade type for an accommodation, but the handle was a bit too thick and difficult to use when shaving upward.Even so, it was an excellent ryokan and we were very satisfied.

    たぬきあじゃり 10/16/2026

Facilities and Services

See All
  • Hot spring
  • Room with Open-Air Bath
  • Spa facility
Open-air bath / Free-flowing hot spring / Large public bath / Private bath / Sauna / Free shuttle service
IN15:00～19:00
OUT11:30
Number of rooms8 rooms
PetNot allowed
Your childNot allowed
At Kaicho-ro, we accept Reservations from guests aged 20 and over. *Reservations and stays by guests under 20 are not permitted.

Photo

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A luxurious, unhurried escape for adults
Room with garden and open-air bath (10 tatami mats).
  • Japanese-style Room
  • 50㎡
  • Capacity 1~2 people

One complimentary drink with dinner ~ Indulge in a luxurious holiday of relaxation with exquisite cuisine and soothing Onsen.

IN 15:00～19:00
OUT 11:30
¥123,904～
Dinner and Breakfast included ; 2 peopleTax included¥95,407〜
(USD 602.49)

Kaicho Tower Standard Plan ~ Creative Japanese Kaiseki "Four Seasons"

IN 15:00～19:00
OUT 11:30
¥118,580～
Dinner and Breakfast included ; 2 peopleTax included¥97,236〜
(USD 614.04)
Special room with garden open-air bath

One complimentary drink with dinner ~ Indulge in a luxurious holiday of relaxation with exquisite cuisine and soothing Onsen.

IN 15:00～19:00
OUT 11:30
¥148,104～
Dinner and Breakfast included ; 2 peopleTax included¥114,041〜
(USD 720.16)

Kaicho Tower Standard Plan ~ Creative Japanese Kaiseki "Four Seasons"

IN 15:00～19:00
OUT 11:30
¥142,780～
Dinner and Breakfast included ; 2 peopleTax included¥117,080〜
(USD 739.36)
Hollywood twin-style bedroom

One complimentary drink with dinner ~ Indulge in a luxurious holiday of relaxation with exquisite cuisine and soothing Onsen.

IN 15:00～19:00
OUT 11:30
¥194,084～
Dinner and Breakfast included ; 2 peopleTax included¥149,445〜
(USD 943.74)

Kaicho Tower Standard Plan ~ Creative Japanese Kaiseki "Four Seasons"

IN 15:00～19:00
OUT 11:30
¥188,760～
Dinner and Breakfast included ; 2 peopleTax included¥154,784〜
(USD 977.46)

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Introduction of the Accommodation

Open-air bath

— A True Hidden Retreat for Adults — OkuiKaho Ryotei Kaichoro

Step inside and begin the prologue to an extraordinary world. “Kai” signifies peace, and “Cho” signifies unhurried comfort—together creating a supreme space for relaxation. We promise an unprecedented level of luxurious comfort that will leave you fully satisfied.

Example guest room

A Luxurious Retreat with Just 8 Rooms

With attentive service and a strong sense of privacy, we offer only eight guest rooms. Each room overlooks Ikaho’s natural scenery and features an open-air bath supplied with the renowned hot spring “Shirogane-no-Yu.”

Welcome Champagne

Check-in is in your room. Toast with welcome champagne and wasanbon sugar sweets.

Sample guest room

Enjoy a relaxing soak at any time you like in the private open-air bath in your room.

At our spa, unwind and melt away physical and mental fatigue, enjoying a soothing time that refreshes both body and mind.

View Terrace

Relax while taking in the great outdoors from our view terrace overlooking Oku Ikaho.

Sample Dishes

Each dish is a masterpiece of Japanese cuisine, crafted with skill and heart. Be filled with the joy of exceptional dining.

Example guest room

Spend a relaxing evening unwinding in your room.

Entrance

Entrance

Facilities and Equipment of Accommodation

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

Notice from the Accommodation

  • [September 2026 Menu]

    [September] Dish of the Month

    In the mountain valleys of Ikaho, September arrives quietly with the first signs of autumn. While a trace of daytime warmth still lingers, the evening air begins to carry a clear, gentle chill. To open your evening drink, we have prepared seasonal bites that hint at autumn’s arrival—matsutake mushrooms, salmon jerky (saketoba), and Pacific saury sushi. Toasty aromas, a pleasant touch of salt, and the rich fat of saury—each small plate softly holds what will soon become deeper autumn. For soup, we serve matsutake mushroom dobin-mushi. The moment you lift the lid, its rising fragrance subtly changes the atmosphere. In the warmth of clear dashi broth, the aroma of matsutake unfolds; with each sip, it feels as though mountain stillness draws closer. Our featured dish this month is Hakodate flounder prepared as a Japanese-style piccata. Delicate flounder is wrapped in a light batter and paired with a Japanese sauce layered with refined fig sweetness, the depth of Saikyo miso, and a gentle note of butter—quietly embracing its subtle umami. To accompany this plate, we recommend an Alsace white: Riesling GC Sommerberg 2021. Made from grapes grown in the Sommerberg Grand Cru vineyard, it offers elegant fruit character, crisp acidity, and a clean mineral finish reminiscent of stone. It naturally complements both the delicacy of flounder and the soft richness of the sauce—leaving only its fragrance lingering on. Autumn is something that deepens slowly without haste. At Kaichoro this September season at Ikaho , please enjoy its beginning in quiet comfort.

  • A lingering, deep finish of Daiei turban shell, like fishing lights glowing in a white bowl.

    [Hazuki–Nagatsuki] Dish of the Month

    Even in the mountain valleys of Ikaho, late summer lingers gently through Hazuki (August). While the daytime warmth remains, the evening breeze softens, and our menu begins to carry a cool fragrance and a calm that hints at early autumn. To begin your first cup, we offer gifts from the sea delivered from Ishinomaki, Miyagi. The smooth sweetness of sea urchin, the delicate melt of milt, and the subtle savor of pike conger. With the aroma of sesame vinegar, this dish lets you enjoy a lingering taste of the ocean beneath its refreshing chill. Our hassun is a vibrant assortment that reflects both summer’s lingering presence and autumn’s arrival. Greens, vermilion tones, and soft whites color each plate—each bite revealing a new expression of the season. Paired with seasonal sashimi is “Kuyō Masamune Junmai Daiginjo” from Kumamoto. A grapefruit-like aroma and a crisp acidity that complements summer seafood with ease. Polished Yamada Nishiki lends this sake its pure, light finish. And this month’s quietly captivating highlight is our warm dish. We prepare large turban shell from off Ito in Izu as Isaribi-yaki (fisherman’s fire grilling). Its fragrant char, a hint of rocky shore air, and deep umami that grows with every bite— a dish like a faint lantern lighting up the summer night sea within your bowl. As you begin to glimpse the next season beyond the heat, please take your time savoring these cool lingering notes at Kaichoro in Hazuki (August).

Basic Information

Card information
VISA / MASTER / JCB / AMEX / DINERS / UnionPay
Pets
Not allowed
BreakfastThere is no information about breakfast.
Your child
You cannot stay.
At Kaicho-ro, we accept Reservations from guests aged 20 and over. *Reservations and stays by guests under 20 are not permitted.
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
Available
Spa Yawaragi Hours: from 15:00 (last appointment at 21:30) Reservations are required in advance as this service is by Reservation only.
Fitness gym
None
Public Bath
The number of Public Bath
2
Business Hours
---
Hot spring
Available
Free-flowing
Available
Milky hot spring water
Available
Additional Information
(Heating)
Remarks
Guests staying at Ryotei Kaicho-ro may also use the indoor baths (Kogane-no-Yu and Hakugin-no-Yu), the open-air bath (Kogane-no-Yu), and the sauna at the main building, Fukuichi. *Hours: 3:00 PM–1:00 AM, 5:00 AM–10:00 AM
Open-air bath
The number of Open-air bath
2
Business Hours
---
Hot spring
Available
Free-flowing
Available
Milky hot spring water
None
Additional Information
(Heating, Adding Water)
Remarks
Guests staying at Ryotei Kaicho-ro may also use the indoor baths (Kogane-no-Yu and Hakugin-no-Yu), the open-air bath (Kogane-no-Yu), and the sauna at the main building, Fukuichi. *Hours: 15:00–1:00, 5:00–10:00*
Private bath
The number of Private bath
3
Business Hours
16:00~24:00
Hot spring
Available
Free-flowing
Available
Milky hot spring water
Available
Additional Information
(Heating, Adding Water)
Remarks
Room with Open-Air Bath
Hot spring
Available
Free-flowing
None
Milky hot spring water
None
Additional Information
Remarks
Available 24 hours a day.
Spring quality and benefits

Sulfate Spring

Rheumatism / Gastrointestinal illness

SaunaAvailable
Hot stone spaNone
Others[Payment] PayPay accepted

Reviews

Overall Score
4.65
Wonderful (104)
  • Rooms & Amenities
    4.62
  • Facility
    4.54
  • Hospitality & Service
    4.65
  • Meals
    4.71
  • Onsen & Bath
    4.71
  • Satisfaction
    4.65

*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 Prefecture5-4 Koyu, Ikaho, Ikaho-machi, Shibukawa City
TEL：+81-279-20-3040

■By Train From Tokyo: Tokyo Station → Joetsu Shinkansen to Takasaki Station (55 min) → Joetsu Line to Shibukawa Station (20 min) From Shibukawa Station, it is a 20-minute taxi ride to the Accommodation. ■By Highway Bus ・Take the JR Bus “Joshu Meito Meguri-go” from “JR Shinjuku Station (New South Exit)” to “Ikaho Ishidan-gai” (approx. 2 hr 42 min). *A Shuttle Service is available from the bus stop. Please contact us upon arrival. ■By Car Nerima IC → Kan-Etsu Expressway (70 min) → Shibukawa-Ikaho IC (20 min) Approx. 20 minutes from Shibukawa-Ikaho IC *Free covered parking is available in front of the entrance. [Please Read Carefully] Our Accommodation has two entrances. One entrance is on the Ishidan-gai side, adjacent to the stone steps area (“Ishidan-gai”), and cannot be accessed directly by car. When coming by car, please set your navigation as follows. Please do not search by phone number or Facility name. ・Search by map code: Set your car navigation system to Map Code “94 875 154*84”. ・Search by destination: On Google Maps, search for “Kaichoro Parking”.

Parking Information
Fee
Free for guests
Parking time
---
Parking space
No restrictions
Number of parking spaces
20 cars available Outdoor mechanical
Valet service
Available (Free)

Pickup and drop-off information
Available (Free)Shuttle Service is available from bus stops in Ikaho Town from 14:00 to 17:00. *Please contact us upon arrival. Available for parties of 2 or more.*

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