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Hoshizora Onsen

The water that is collected in this onsen springs up from a depth of 1750 m and contains natural beauty-enhancing ingredients of low-alkalinity, creating an exquisite relaxation experience.
Guests can enjoy this outdoor onsen under a starry sky throughout the year.


  • Type
  • Location
    ARAI Bldg. 2F, Hoshizora Onsen & Pool


Categories Open Hours Price
Hotel Guest


05:00 - 10:00

( Last Entry 9:30 )


13:00 - 23:00

( Last Entry 22:30 )

Weekends & Holidays

05:00- 23:00

( Last Entry 22:30 )


13:00 - 23:00

( Last Entry 22:30 )

Adult ¥1,650
Child ¥850

※ Child price is for children 6-12 years old and under.
※ Prices are including tax.

[ Towels ]
・Bath towels and face towels are available for rent at the Hoshizora Onsen.
However, Staff are not on duty between 5:00 and 10:00 on weekdays and between 5:00 and 13:00 on Saturdays, Sundays, and national holidays. In such cases, please bring towels provided in your room.

[ Use of Hoshizora Onsen after check-out ]
After check-out, you can use the hot spring baths at the following rates
Adults: ¥500 / Children: ¥250
* This offer is available to guests who stayed the previous day.


[ Prohibitions ]
- No shoes with dirt floors are allowed in the building.
- No gangsters are allowed to enter.
- Please refer to the "Regulations for Tattoos" below if you have any tattoos.
- Please refrain from bathing if you have a skin condition or contagious disease.
- No adult or child in diapers is allowed to enter the bathhouse.
- Drunken persons are not allowed to enter the bathhouse.
- No food or beverages are allowed in the bathrooms.
- Hair dyeing and other chemicals are not permitted in the bathrooms.
- No cameras, etc. are allowed in the changing rooms or bathrooms.

[ Notes ]
- Children under elementary school age are not allowed to use the venue.
- Please use the security box for valuables, etc.
- Any behavior that may cause inconvenience to other guests is prohibited.


TEL +81-255-75-1114 Make a Call

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