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Yunohana Chaya Shinzaemon-no-Yu (Zao Onsen)

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    Outside of the facilities

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    Indoor bath (women's bath)

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    Open-air bath (women's bath)

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    Restaurant Yunohana Chaya

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    Souvenir shop Iseya

Zao Onsen is said to have been opened for more than 1900 years and as such is known as the oldest hot spring resort in Yamagata Prefecture.

Strongly acidic sulfur springs are said to be effective against cuts, burns, chronic skin diseases, weak children, chronic gynecological diseases, diabetes, hypertension, arteriosclerosis, etc.

Yunohana Chaya Shinzaemon-no-Yu is a day-trip bathing facility with baths, a restaurant and a souvenir shop.

Shinzaemon-no-Yu is clean everywhere throughout the facility. Once you pass the entrance, you will feel that you are on a nice day trip.

It is located opposite the Chuo Ropeway, which many people use for trekking in summer and skiing in winter, a convenient location in Zao Onsen.

Shinzaemon Feature Article

Basic information

Shop name
Yunohana Chaya Shinzaemon-no-Yu (Zao Onsen)
Day-trip hot spring

905 Kawamae, Zao Onsen, Yamagata City, Yamagata Prefecture


[By car]
About 30 minutes from Yamagata Zao IC
About 35 minutes from Yamagata Station

65 free parking lots / paid as below only in winter season
・ For those who take a bath… 3 hours free
・ Those who purchase 1,000 yen or more at the souvenir shop… 1 hour free
・ If the above time is exceeded, 300 yen per hour
・ Please show your parking ticket when you enter or pay.

Parking lot

Weekdays 10:00~18:30 (last entry at 18:00)
Weekends and holidays 10:00~21:30 (last entry at 21:00)

For the time being, the business will be as follows (as of August 2020)
* Please contact “Shinzaemon no Yu” directly for details as it is subject to change.

Baths and souvenir shop
[Business hours]
10:00~18:00 (last entry at 17:30)

[Business hours]
10:00~18: 00 (last order at 17: 30)
Tuesday, Wednesday and Thursday



Official site

[Onsen information]

Facility name
Zao Onsen
Source name
Open-air bath Mogami Takayu: Hebiarakawa Origuchi source
Open-air bath Shiroku-no-Yu: Takamiya No. 1 source, Omiya No. 1 source, Ebiya & Yamakataya source, Ebiya source, Matsukaneya source, Kawaharaya source
Open-air bath Kame-no-Yu: Takamiya No. 1 source, Omiya No. 1 source, Ebiya & Yamakataya source, Ebiya source, Matsukaneya source, Kawaharaya source
Water quality
Acidic / Sulfur-Containing-Aluminum-Sulfate / Chloride Hot Spring
Source temperature
– Open-air bath Mogami Takayu: 51.9 ℃
– Open-air bath Shiroku-no-Yu: 51.6 ℃
– Open-air bath Kame-no-Yu: 51.6 ℃
Bath temperature
– Open-air bath Mogami Takayu: 42.0 ℃
– Open-air bath Shiroku-no-Yu: 42.0 ℃
– Open-air bath Kame-no-Yu: 42.0 ℃
Added water
– Open-air bath Mogami Takayu
– Open-air bath Shiroku-no-Yu    
The acidity of the hot spring is extremely high, so tap water is added to dilute and soften it.
– Open-air bath Kame-no-Yu       
– Open-air bath Mogami Takayu  
– Open-air bath Shiroku-no-Yu
Tap water is added to the hot spring water and heated to maintain a temperature suitable for bathing.
– Open-air bath Kame-no-Yu    
Overflow & filtration
– Open-air bath Mogami Takayu  
All hot spring water is (discharged)
Hot spring water is discharged from two places, the top of the bathtub and the bottom of the bathtub.
– Open-air bath Shiroku-no-Yu
The hot spring water is circulated and flushed (discharged) to keep the temperature suitable for bathing.
-Open-air bath Kame-no-Yu
The hot spring water is flowing at all time
Hot spring water is discharged from the top of the bathtub
No bath salts or disinfectants are used
Cuts, burns, chronic skin diseases, frail children, chronic women’s diseases, diabetes, hypertension, arteriosclerosis, neurosis, muscle pain, arthralgia, frozen shoulders, motor paralysis, joint stiffness, bruises, lottery, chronic digestive organs disease, hemorrhoids, coldness, post-illness recovery period, fatigue recovery, health promotion

People with skin or mucosal hypersensitivity, especially those with photosensitivity, xeroderma in the elderly, acute illness (especially when fever), active tuberculosis, malignant tumors, severe heart disease, respiratory failure, renal failure, Hemorrhagic disorders, severe anemia, and other commonly ongoing disorders, during pregnancy (especially early and late)


Adult: 800 yen (tax included)
Child: 400 yen (tax included)
Infant: 200 yen (tax included)
    * 3 years old and over
Coupons: 8,000 yen (tax included)
     * includes 12 tickets

Towel: 200 yen (tax included)
Bath towel: 900 yen (tax included)
              * 800 yen for rental (* includes a deposit of 500 yen)
Soba set: 1,450 yen
* Bath + soba (cold / hot)
Yukata to rent: 1,000 yen (tax included)
Nylon towel: 200 yen (tax included), etc.

[Private room usage fee]
Yamamomiji-no-Ma (12 tatami mats, capacity for 6 people): 3,000 yen (tax included) for 2 hours
Yamaboshi-no-Ma (15 tatami mats, capacity for 8 people): 4,000 yen (tax included) for 2 hours
* There is a free-to-use hall too

10 minutes: 1,000 yen (tax included)
20 minutes: 2,000 yen (tax included)
40 minutes: 4,000 yen (tax included)
60 minutes: 6,000 yen (tax included)

Surrounding spots

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