Kaigetsukan creates a rejuvenating retreat with its indoor mineral hot spring and seasonal outdoor pool. Guests can enhance their stay with aromatherapy spa services, relax with a newspaper in hand, or borrow bikes to explore the surrounding attractions.
Located near the bay, Kaigetsukan is in Sumoto Onsen, a neighborhood in Sumoto. Sumoto Castle and Senkoji Temple are local landmarks, and some of the area's attractions include Awaji World Park Onokoro and Awaji Farm Park England Hill. Awajishima Ranch and Awajishima Monkey Center are also worth visiting. Visit our Sumoto travel guide
656 0022, Hyogo-ken, Sumoto, 1-3-11 Kaigandori
What's nearby
Sumoto Castle
13 min walk - 1.1 km
Sumiyoshi Shrine
4 min drive - 3.2 km
Akashi Kaikyo Bridge
50 min drive - 55.6 km
Otsuka Art Museum
40 min drive - 37.3 km
Nizigen Nomori Park
46 min drive - 48.6 km
Getting around
Kansai Intl. Airport (KIX)
146 min drive
Restaurants
淡路ごちそう館 御食国
8 min walk
ポプラ
8 min walk
創作和食 はまだ
8 min walk
金鮓
7 min walk
しるく屋
8 min walk
About this property
Kaigetsukan
Ryokan located in Sumoto Onsen
An indoor mineral hot spring (onsen), an arcade/game room, and dry cleaning/laundry services are just a few of the amenities provided at Kaigetsukan. Treat yourself to spa services, such as a massage, a body treatment, or a facial. In addition to a bar, guests can connect to free in-room WiFi.
You'll also enjoy perks such as:
A seasonal outdoor pool
Free self parking
Buffet breakfast (surcharge), bike rentals, and an electric car charging station
Free newspapers, a billiards/pool table, and massage treatment rooms
Room features
All 69 rooms have comforts such as premium bedding and laptop-friendly workspaces, in addition to perks like free WiFi and air conditioning.
More conveniences in all rooms include:
Toilets with electronic bidets, shower/tub combinations, and free toiletries
Wardrobes/closets, refrigerators, and electric kettles
Daily buffet breakfast available 7:00 AM to 9:00 AM for a fee: JPY 3,500 per person
A bar/lounge
Things to do
Arcade/game room
Bicycle rentals
Billiards/pool table
Full-service spa
Karaoke
Seasonal outdoor pool
Conveniences
24-hour front desk
Free newspapers in lobby
Gift shop/newsstand
Guidebooks
Laundry facilities
Luggage storage
Safe at front desk
Guest services
Dry cleaning/laundry service
No housekeeping service
Tour and ticket assistance
Outdoors
On the bay
Full-service spa
Aromatherapy
Facials
Massage
Public bath open from 3:00 PM - midnight
Public indoor mineral hot springs (onsen)
Separate men/women areas in public bath
Spa treatment rooms
Yukata (Japanese robes)
Accessibility
If you have requests for specific accessibility needs, please contact the property using the information on the reservation confirmation received after booking.
Elevator
Well-lit path to entrance
Wheelchair-accessible path to elevator
Wheelchairs on site
More
Smoking not allowed
Room amenities
Bedroom
Premium bedding
Bathroom
Free toiletries
Hair dryer
Shower/bathtub combination
Slippers
Toilet with electronic bidet
Towels provided
Entertainment
LCD TV
Food and drink
Electric kettle
Refrigerator
Restaurant dining guides
Room service
More
Air conditioning
Desk
Heating
Laptop workspace
Phone
Safe
Policies
Check-in
Check-in start time: 3:00 PM; Check-in end time: 7:00 PM
Minimum check-in age: 20
Check-out
Check-out before 10 AM
Special check-in instructions
Front desk staff will greet guests on arrival at the property
This property doesn't offer after-hours check-in
Information provided by the property may be translated using automated translation tools
Guests with half board rate plans must check-in by 7 PM.
Access methods
Staffed front desk
Pets
Pets not allowed (service animals are welcome, and are exempt from fees)
Children and extra beds
Children 18 and younger are not allowed at this property; All guests older than 18 are welcome
Rollaway/extra beds are not available
Cribs (infant beds) are not available
Property payment types
Important information
Optional extras
Fee for buffet breakfast: approximately JPY 3500 per person
The above list may not be comprehensive. Fees and deposits may not include tax and are subject to change.
You need to know
Extra-person charges may apply and vary depending on property policy
Government-issued photo identification and a credit card, debit card, or cash deposit may be required at check-in for incidental charges
Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed
Guests must contact this property in advance to reserve access to the hot springs and access to the public bathing facility
This property accepts credit cards; cash is not accepted
Safety features at this property include a fire extinguisher
Please note that cultural norms and guest policies may differ by country and by property; the policies listed are provided by the property
We should mention
Reservations are required for private bath/onsen; reservations can be made by contacting the property prior to arrival, using the contact information on the booking confirmation
Children 18 years old and younger are not permitted at this property
The Japanese Ministry of Health, Labour, and Welfare requires all international visitors to submit their passport number and nationality when registering at any lodging facility (inns, hotels, motels, etc. ); additionally, lodging proprietors are required to photocopy passports for all registering guests and keep the photocopy on file
Please note that some properties do not permit guests with tattoos to use the onsite public bathing facilities
Property is also known as
Kaigetsukan
Kaigetsukan Inn
Kaigetsukan Inn Sumoto
Kaigetsukan Sumoto
Kaigetsukan Ryokan
Kaigetsukan Sumoto
Kaigetsukan Ryokan Sumoto
Frequently asked questions
Does Kaigetsukan have a pool?
Yes, this property has a seasonal outdoor pool.
How much does it cost to stay at Kaigetsukan?
As of Mar 7, 2026, prices found for a 1-night stay for 2 adults at Kaigetsukan on Apr 1, 2026 start from ¥25,364, excluding taxes and fees. This price is based on the lowest nightly price found in the last 24 hours for stays in the next 30 days. Prices are subject to change. Choose your dates for more accurate prices.
Is Kaigetsukan pet-friendly?
No, only service animals are welcome at the property.
How much is parking?
Self parking is free at this property.
What time is check-in at Kaigetsukan?
Check-in start time: 3:00 PM; Check-in end time: 7:00 PM. After-hours check-in is not available.
What time is check-out at Kaigetsukan?
Check-out is at 10 AM.
Where is Kaigetsukan located?
Located in Sumoto Onsen, this spa ryokan is within 1 mi (2 km) of Setonaikai National Park and Sumoto Castle. Sumiyoshi Shrine is 1.5 mi (2.4 km) away.
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Reviews
Kaigetsukan Reviews
8.2
Very Good
All reviews shown are from real guest experiences. Only travelers who have booked a stay with us can submit a review. We verify reviews according to our guidelines and publish all reviews, positive or negative.More informationOpens in a new window
7.8
Cleanliness
7.4
Location
8.4
Staff & service
7.4
Property conditions & facilities
Rating 10 - Excellent. 86 out of 233 reviews
10 - Excellent
86
Rating 8 - Good. 92 out of 233 reviews
8 - Good
92
Rating 6 - Okay. 37 out of 233 reviews
6 - Okay
37
Rating 4 - Poor. 13 out of 233 reviews
4 - Poor
13
Rating 2 - Terrible. 5 out of 233 reviews
2 - Terrible
5
Reviews
6/10 Okay
Gary
Jan 25, 2026
Futon Beddings were very thin & uncomfortable. Staff & meals were great!