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
    Hoshizora Onsen & Pool Front Desk 2F


Hours (When the regular hotel inspection day, it will be closed.)

【Hotel guest】
- Mon. to Sun. : 6:30 ~ 9:00
12:00~23:00 (22:00 Final Admission) 

【Visitor 】
- Mon. to Sun. : 14:00~18:00 (17:00 Final Admission) 

An onsen with low-alkalinity that is both gentle on the skin and locks in moisture
An indoor pool that can be used year round
Enjoy the nature surrounding Okenashiyama from this onsen

[Onsen] General : Adults JPY1,300 / Children JPY700       - Resort guests : Free admission
[Onsen + Pool] General : Adults JPY2,000 / Children JPY 1,200  - Resort guests : Adults JPY1,300 / Children JPY700
*Children : Under 12year-old (Free admission for under 3year-old children)
 Towel rentals are free.
*Sauna is temporarily closed to prevent coronavirus infection.


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


(1) Bathing Facility Reception
・One person per shoe locker, please, and leave the key at the reception desk.
・The wristband you will be issued will have your locker number on it. Do not use any others.
・Please return the wristband when you leave the facilities.
・Losing your wristband will result in a 3000 yen fee.

(2) Bathing Facility Rules (Please Read)
・No dirty feet allowed in the baths.
・We will refuse admission and service to any and all anti-social organizations (including organized crime).
・We ask that persons with skin and/or contagious ailments to understand that we cannot offer them the service of the bathing facilities.
・We ask parents of toddlers in diapers to understand that we cannot offer the services of the bathing facilities.
・Inebriated guests will be refused the services of the bathing facility.
・Wash your body completely before entering the bath.
・Do not take towels into the bath.
・Dry your body completely before using the sauna.
・Dry your body completely after exiting the bath.
・No outside food or drink allowed in the bathing facilities.
・Please do not use hair coloring products or similar products in the bathing facilities.

・Cameras and/or recording devices of any kind are expressly forbidden within ANY part
of the bathing facilities.
・Children under elementary school age must be accompanied by an adult at all times.
・Do not disturb other guests.