Home Facilities Onsen - Hoshizora Onsen


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 2F, Hoshizora Onsen & Pool


Categories Time Price ( JPY )
Hotel Guest


05:00 - 10:00 Free
13:00 - 23:00

Weekends & Holidays

05:00- 23:00

13:00 - 23:00

( Last Entry 22:00 )

Adult ¥1,500
Child ¥800

※ Children : Under 12year-old (Free admission for under 3year-old children)
※ When Tuesdays and Fridays are holidays, there will be a two-part system due to the inclusion of sterilization and cleaning time.

・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 9:00 on Saturdays, Sundays, and national holidays. In such cases, please bring towels provided in your room.

[Sauna Opening Hours] 13:00-23:00


[ 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