Business Calendar


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Private Sauna Plan

Would you like to rent out a hot spring facility in Saiko just for yourself?
A truly private sauna where no one will disturb you.
Groups, families, and couples can wear swimsuits and tattoos!
Click here for details

Activity and More

Business Hour and Price

Entrance FeeAdult 1,000 yen
6 – 12 years old 550 yen
0 – 5 years old 450 yen
RentalBath towel 210 yen Face towel 160 yen
Business Day and Hour※Please check the business calendar
Phone Number
Adress987 Saiko, Fujikawaguchiko-cho, Minamitsuru-gun, Yamanashi Prefecture 401-0332


People associated with organized crime groups or those with tattoos are not allowed to bathe.

Kuroshio Bath

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Kuroshio bath is a bath that uses natural sea salt. Natural sea salt is not sodium chloride refined in a chemical factory, but is a mineral salt that contains large amounts of organic components such as potassium, calcium, and magnesium, which are the same components that are found in the sea, the source of all things. It is effective for mental stability. The same hot springs as the famous sea salt therapy center (thalassotherapy) covered by social insurance in France.

Open-Air Bath

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Enjoy the wind and sounds of nature in the large open-air bath.


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We are open with a limited menu.

Business hours are 12:00-14:30.


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You can relax after taking a bath in the large rest space of about 100 tatami mats.
We also have a banquet hall that can accommodate up to 60 people and a private rest room.

Private Room 
After bathing, relax in a private room

Reservations are not required, so please check availability at reception.
1,100 yen/hour
*Separate bathing fee will be charged.
Operating hours: 10:30-19:30 (last reception 18:15)
*Available in 1 hour increments.
*Please contact us in advance if you wish to use the service as it may change without prior notice.

Other Information

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There is a free parking lot right next to the hotel.
Please refrain from parking for anyone other than those using Izumi no Yu.