Enjoy the luxurious flow of natural onsen at Isawa Onsen property.

Our natural hot spring, sourced directly on-site, flows at an impressive rate of 1,415 liters per minute. The gentle and soft water is kind to the skin, making it safe for those with sensitive skin and even babies. With a silky texture similar to soap and excellent heat-retention properties, it boosts metabolism and leaves your skin smooth and warm long after bathing.

  • I chose this Accommodation for its free-flowing Onsen, and when I actually visited, I was truly impressed to see the hot water gushing out in abundance. There are two baths, Kaki-no-Yu and Momo-no-Yu, with Kaki-no-Yu being more spacious. At the entrance to the open-air bath at Momo-no-Yu, stones are laid out underfoot, giving a stimulating sensation on the soles of your feet that felt pleasantly painful. The meals were also delicious, with some dishes clearly prepared with great care. Our Room was on the third floor, and I wished there had been an elevator—but perhaps it was good exercise instead.

    1Qやまじん 7/12/2026
  • I had been wanting to visit for a long time, but it was difficult to make a reservation. Finally, I was able to come! The onsen was amazing. I had heard there was drinkable onsen water, so I was really looking forward to it! I also heard the food was delicious, and as expected, the meals were outstanding. It was truly an incredible experience! Since there aren't many rooms available, making a reservation can be challenging, but the personalized hospitality more than made up for it. I'm very satisfied! This is an accommodation I would love to visit again. Thank you very much.

    xoxer 9/15/2025

Facilities and Services

See All
  • Hot spring
Open-air bath / Free-flowing hot spring / Large public bath / Private bath / Within a 5-minute walk to the convenience store. / Free shuttle service
IN15:00~21:30
OUT10:00
Number of rooms15 rooms
PetNot allowed
Your childPermitted

【Experience the natural flow easily】Showers also from private hot springs! Self-check-in Plan with minimal interaction【No meals included】

IN 15:00~20:00
OUT 10:00
¥20,300
No meals ; 2 peopleTax included¥18,300
(USD 115.63)

[No Meals Included] Final Check-in at 21:00! Enjoy a convenient getaway to Isawa Onsen with a relaxing trip to the natural free-flowing Onsen after work.

IN 15:00~21:00
OUT 10:00
¥26,000
No meals ; 2 peopleTax included¥23,400
(USD 147.86)

【No Meals Included】Enjoy privacy with 50 minutes of exclusive use of the open-air bath "Grape Bath"【Ultimate 100% Natural Hot Spring Flow】

IN 15:00~21:00
OUT 10:00
¥27,800
No meals ; 2 peopleTax included¥25,020
(USD 158.10)

[No Meals Included] Final Check-in at 21:00! Enjoy a convenient getaway to Isawa Onsen with a relaxing trip to the natural free-flowing Onsen after work.

IN 15:00~21:00
OUT 10:00
¥30,000
No meals ; 2 peopleTax included¥27,000
(USD 170.61)

【No Meals Included】Enjoy privacy with 50 minutes of exclusive use of the open-air bath "Grape Bath"【Ultimate 100% Natural Hot Spring Flow】

IN 15:00~21:00
OUT 10:00
¥31,800
No meals ; 2 peopleTax included¥28,620
(USD 180.84)

Best-Selling Stays

Accommodation Suitable For Large Groups

Accommodation Suitable For 2 Family Trips

Accommodation In Top-Ranked Tourist Areas

Accommodation Convenient For Family Sightseeing With Children

Introduction of the Accommodation

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【Onsen Heritage Preservation Association】Central Region - Natural Flow Certification

【Association for Preserving Hot Spring Properties】Certified Property with Natural Hot Spring Flow.

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About the natural hot spring 【Kanryoku no Yu】

The private Onsen, "Kanjuku no Yu," boasts a natural flow rate of 1,415 liters per minute (equivalent to 7 oil drums). Fresh, naturally gushing spring water from the property is directly piped into each bath without the use of pumps, and the system is entirely free of circulation, heating, water dilution, or chlorine sterilization. At Miyuki Onsen, you can fully enjoy the 100% natural flow of "Kanjuku no Yu." The sight of the Onsen water overflowing from the baths is truly impressive! The cascading water resembles a river, allowing you to experience the authentic natural flow of the spring with your eyes and skin. The gentle, alkaline water is also used in the faucets and showers, ensuring that the benefits of the Onsen remain even after rinsing off. At the entrance, you can even collect the spring water to take home—be sure to give it a try!

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Onsen and bath

The charm of Kaki no Yu lies in the abundant hot spring water dynamically overflowing from the baths. Fresh natural spring water is directly piped into each bath without circulation, heating, dilution, or chlorine sterilization, offering a pure 100% natural hot spring experience. A 'spring water river' flows around the open-air bath, allowing you to see and feel the essence of the spring water.

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Room

The rooms are located on the 2nd or 3rd floor, and there is no elevator, so stairs are required. If you prefer a room on the 2nd floor, please make a request.

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Meal

The main highlight of choosing our facility is the 100% natural Onsen, but many guests also visit for the young chef's dinner, leading to a high repeat visitor rate. To personally verify the ingredients, the chef himself goes to the Kofu market every morning for procurement. Dinner consists of 13 meticulously prepared Japanese dishes, which can be leisurely enjoyed in your Room or a private dining area.

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Other Facilities

A corridor lined with photos of the Onsen eruption.

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 / Debit card
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
  • ○ Face towel
  • ○ Bath towel
  • × Body towel · sponge
  • ○ Toothbrush set
  • ○ Comb · Brush
  • ○ Shower cap
  • ○ Hair dryer
  • ○ Shaving
  • × Shaving Gel/Foam
  • × Bath additives
  • ○ Yukata
  • × Pajamas
  • × 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
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
00:00~00:00
Hot spring
Available
Free-flowing
Available
Milky hot spring water
None
Additional Information
100% natural hot spring
Remarks
Unavailable from 19:00 to 19:30 and 10:00 to 10:30 due to gender-specific public bath cleaning.
Open-air bath
The number of Open-air bath
2
Business Hours
00:00~00:00
Hot spring
Available
Free-flowing
Available
Milky hot spring water
None
Additional Information
100% natural hot spring
Remarks
Unavailable from 19:00 to 19:30 and 10:00 to 10:30 due to gender-specific public bath cleaning.
Private bath
The number of Private bath
1
Business Hours
07:00~21:00
Hot spring
Available
Free-flowing
Available
Milky hot spring water
None
Additional Information
100% natural hot spring
Remarks
Reception is available in 1-hour increments from 15:00 to 21:00 and from 7:00 to 8:00. The regular fee is ¥3,000, but with the presentation of an internet coupon, you can use it for ¥1,500. (Usage time is 50 minutes)
Spring quality and benefits

Simple alkaline spring, hypotonic weak alkaline spring, weak sulfur spring

Atopy, eczema, fatigue recovery, rheumatism, neuralgia, cold sensitivity, fatigue recovery

※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

Reviews

Overall Score
4.52
Wonderful (32)
  • Rooms & Amenities
    4.28
  • Facility
    3.91
  • Hospitality & Service
    4.69
  • Meals
    4.74
  • Onsen & Bath
    4.97
  • Satisfaction
    4.63

*Reviews that have been translated from Japanese.*

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

Access Information

Address
Yamanashi Prefecture822, Ichibu, Isawa Town, Fuefuki City
TEL:+81-55-262-4126

10 minutes on foot from JR Isawa Onsen Station / 10 minutes from Ichinomiya Misaka IC on the Chuo Expressway.

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

Pickup and drop-off information
Available (Free)When traveling from JR Isawa Onsen Station to Miyuki Onsen, please call 055-262-4126 after descending to the first floor using the escalator or elevator at the station's south exit. (15:00~19:00) For travel from Miyuki Onsen to Isawa Onsen Station, we provide service between 7:00 and 10:00.

Frequently Asked Questions

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