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Kokumin Shukusha Oojou
Yamaguchi Prefecture/KudamatsuAll rooms offer ocean views, with an Onsen that blends seamlessly with the sea for a truly relaxing experience.
A Property with all rooms offering ocean views, situated on a hill overlooking Kasado Bay. Fully renovated in 2016, it has been reborn as an even more charming destination. The views from the Onsen are spectacular, featuring an open-air bath with a panoramic view of the Seto Inland Sea and an infinity bath that seamlessly blends with the sea and sky, offering an unparalleled sense of openness and breathtaking scenery. For dining, enjoy seafood dishes that combine Japanese and Western styles, made with an abundance of fresh ingredients from the natural harbor, including the specialty "Kasado Flounder." Embark on a journey to Yamaguchi, where the sea meets the heart.
The Facility was clean and comfortable overall. The Room had an ocean view and was spacious, and the washroom and toilet were also large, which was great. We enjoyed delicious meals for both breakfast and dinner. The flounder kamameshi was especially tasty, and the zenzai at the dessert buffet was a unique treat. After 5:00 PM, there were no day-use bath visitors in the large public bath, so we could relax comfortably. This is an Accommodation we would love to stay at again.
Yahoo!トラベルユー... 4/10/2026We chose the Hirame Kaiseki dinner. The sashimi, tempura, and kamameshi were all delicious—absolutely wonderful! The women on staff at the dinner venue were also very kind and attentive. Our child got full and left some of the kids’ set, but they spoke to us gently, which we really appreciated.The Onsen was also excellent, and our children even woke up early to enjoy a morning bath.When we went to breakfast in the 8:00 time slot, some items that had run out (fried chicken and “Chicken Chicken Burdock”) were not replenished, so we couldn’t try them, which was disappointing.Other than that, everything was great with no issues. We’d love to stay again someday.
Yahoo!トラベルユー... 3/21/2026
Facilities and Services
See All- Hot spring
- Accessibility
| IN | 15:00~20:00 |
|---|---|
| OUT | 10:00 |
| Number of rooms | 37 rooms |
| Pet | Not allowed |
| Your child | Permitted |
Photo
See AllBest-Selling Stays
Stays With High Ratings
Stays Proud Of Onsen
Stays Popular For Ocean View
Hotel Popular For Public Bath
Accommodation With No Meals Included
Gourmet Stays
Relaxing Japanese-Style Accommodation
Rooms With Open-Air Baths Popular At Stays
Recommended Accommodation For Honeymoon
Introduction of the Accommodation

Oshiro Onsen "Shiosai no Yu"
Ōshiro Onsen "Shiosai no Yu" boasts an open-air bath with a stunning view of the Seto Inland Sea. In addition to two unique open-air baths and a spacious indoor bath, there are also carbonated baths and a sauna. Enjoy a relaxing time.

Kudamatsu City's specialty: "Kasado Hirame"
"Kasado Hirame," farmed in Kasado Island, is a premium delicacy from Kudamatsu City, known for its rich flavor and subtle sweetness.

Rooms - All rooms feature an open and expansive ocean view.
In front of you lies Kasado Bay, renowned for its stunning sunset views. You can enjoy this dynamic and breathtaking scenery from all Rooms.

Sunset
Please enjoy the sunset over Kasado Bay from the large public bath or your Room.

Nagaoka Gaishi Statue (2-minute walk)
The park, located about a 2-minute walk from the Facility, features a statue of Gaishi Nagaoka, a "pioneer of skiing and Japanese aviation." This statue, built overlooking the Kudamatsu city area, continues to observe the city's development.
Facilities and Equipment of Accommodation
- The room
- Restaurant
- Facilities & Services
Basic Information
| Taxes | *Hot Spring Tax of 150 yen per adult (children aged 0-12 are free) will be charged separately. |
|---|---|
| Card information | VISA / MASTER / JCB / AMEX / DINERS |
| Pets | Not allowed |
| Breakfast | Japanese and Western Buffet |
| Your child | You can stay. |
| Room service | Not available |
| Common amenities |
|
| Facilities and Features |
|
| Esthetic Massage | None |
| Fitness gym | None |
| Public Bath |
|
| Open-air bath |
|
| Spring quality and benefits | Sodium-Calcium Chloride Cold Mineral Spring Neuralgia, muscle pain, joint pain, frozen shoulder, motor paralysis, joint stiffness, bruises, sprains, chronic digestive disorders, hemorrhoids, sensitivity to cold, fatigue recovery, chronic skin diseases |
| Sauna | Available |
| Hot stone spa | None |
| Others | UC, DC, NICOS |
Reviews
- Rooms & Amenities4.62
- Facility4.81
- Hospitality & Service4.71
- Meals4.80
- Onsen & Bath4.62
- Satisfaction4.76
*Reviews that have been translated from Japanese.*
*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*
Access Information
Yamaguchi Prefecture14-1 Kasado Island, Kudamatsu City
TEL:+81-833-52-0138
Approximately 12 minutes by car from JR Kudamatsu Station / Approximately 20 minutes by car from Sanyo Expressway Tokuyama-Higashi IC
- Parking Information
- Fee
- Free for guests
- Parking time
- ---
- Parking space
- No restrictions
- Number of parking spaces
- 150 cars available outdoor
- Valet service
- Unavailable
- Pickup and drop-off information
- Unavailable
Frequently Asked Questions
What kind of facilities and features are available?
There are the following facilities and features. Hot spring・Open-air bath・Large public bath・Sauna・Barrier-free
I would like to know the access information.
Approximately 12 minutes by car from JR Kudamatsu Station / Approximately 20 minutes by car from Sanyo Expressway Tokuyama-Higashi IC
Is parking available?
・Fee: Free for guests ・Parking space: Length --- Vehicle width --- Vehicle height --- ・Number of parking spaces: 150 cars ・Valet Service: Unavailable No Reservation Required
Is an internet connection available?
Connection is possible. ・Wi-Fi is available. For more details, please refer to the room and plan information.
Is there a sauna?
Yes, there is.














