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Mamamoue 270, Izunokuni, 410-2204 (show map)
Ryokan Overview

Lock in a great price now and relax with our Price Guardian working for you
Hotel prices fluctuate. Book now, we will check prices each day for you and then let you know how to re-book if an even better price becomes available.Rooms List
Setup a Price Alert for Sanyo-so
Each day we'll check prices and send you an email for your selected dates at Sanyo-so. If you don't have specific dates but would like to check prices for say next weekend or say next month we can check the price too.
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Facilities of Sanyo-so
General
Free parking, On-site parking, Parking, Private parking
Services
Free WiFi, Internet services, WiFi
Food & Drink
Restaurant, Special diet menus (on request)
Pools and wellness
Hot spring bath, Massage
Transportation
Shuttle service (free)
Front-desk/reception area services
Luggage storage, Safety deposit box
Common areas
Garden
Cleaning services
Daily maid service
Business facilities
Meeting/banquet facilities
Miscellaneous
Air conditioning, Designated smoking area, Family rooms, Heating, Lift, Non-smoking rooms, Non-smoking throughout
Room facilities [ These may vary room to room ]
Air Conditioning, Bath, Bath or Shower, Bathroom, Bidet, Electric kettle, Flat-screen TV, Free toiletries, Hairdryer, Heating, Linen, Refrigerator, Satellite Channels, Shared Toilet, Shower, Telephone, Toilet, Towels, TV, Wake-up service
Hotel Policies
Check-In
From 15:00:00 hours
Check-Out
Untill 11:00:00 hours
Cancellation / Prepayment
Cancellation, prepayment and 'book now pay later' policies vary according to room type. Please check the room conditions when selecting your room above.
Accepted credit cards
The hotel reserves the right to pre-authorise credit cards prior to arrival.
The fine print
To eat dinner at the property, a reservation must be made in advance.Guests with tattoos may not be permitted to use the property’s public bathing areas or other facilities where the tattoos might be visible to other guests.
An accommodation tax per person per night is not included in the price and needs to be paid at the property.
This property will not accommodate hen, stag or similar parties.
Please inform in advance of your expected arrival time. You can use the Special Requests box when booking, or contact the property directly with the contact details provided in your confirmation.
Traveller reviews

“Great stay”
30 Apr 2025
We love everything. The staff are amazing and so helpful, especially those at the restaurant. My grandma enjoyed the food so much during our stay here and she said that was the best meals she had in our trip. Thanks so much for accommodating her with no seafood option. She loved it and I really appreciate. The room was spacious and private onsen in room was great. We all had good sleeps. Would like to come back.

“Fair”
15 Apr 2025
Gorgeous gardens and water features surrounding the residences. We loved the dining experiences - serving traditional food and amazing wait staff. Private onsen in our room was a great experience.

“Exceptional hotel, staff, service and hotspring. Makes you not want to leave!”
20 Jan 2025
This place was exceptional - everything from the hotel itself including onsen, the rooms, the staff, and the meals. If I could give it 20 stars out of 10, I would. We contacted them about our arrival time at the train station and a shuttle was sent to pick us up. We were then upgraded upon arrival (a very kind gesture as it was our honeymoon), and the manager personally delivered a beautiful fruit platter to us as well. The meals were included in the price we paid (dinner and breakfast), served Japanese style - five stars and amazing service. Our room was super spacious and had 3 living areas and a garden, we didn't feel the need to leave at all - the mini bar was refilled daily (beer and Japanese frizzy drinks) and it was so relaxing. My partner who does not normally enjoy the public bathhouse experience LOVED our private onsen and I'm very happy he got to try it out. The town itself was small and truly showed us Japanese hospitality at its best, friendly people who tried hard to communicate and be helpful and conversational despite language barriers. We did explore the town a bit, quite walkable or by bike and highly recommend Tsukushi Ramen (best ramen we've ever had - just Google map it) and also Toriei skewer bar. We will definitely be back one day.

“Relax and unwind”
02 Jan 2025
We loved the rooms, the amazing private onsen. The food was incredible. Attention to detail. We loved our stay

“Overall I'm very happy with the hotel and will consider coming back next year with my family.”
01 Dec 2024
Sanyo So is located in a large property. We stayed in the Deluxe room in the new building. The room has a sitting area right next to our own garden with a little stream. It was so private! The hallway leading to the restaurant has windows all along with views of greenery and waterfall, also lit up at night. A nice walk leading to the dining room, so beautiful! The Japanese garden was well maintained with a stone bridge, pond and ancient pine trees, a pleasant place to walk around. Both breakfast and dinner were traditional kaiseki style, serving food that were in season. Staff were fantastic and friendly.

“Like staying in a museum, every view is captivating.”
11 Oct 2024
The breakfast is extraordinary, we are talking about a real Japanese breakfast. But dinner... dinner is an event in itself, nine courses, carefully designed down to the last detail. There will be dishes you won't know whether to touch or just look at. The location is exceptional, buildings surrounded by forest with a landscape design that surpasses everything you can see in the photos, I have traveled to Italy, France, etc, and this is the most incredible private garden I have ever seen in my life. In fact the entire building is like a museum. Anyone who might complain about "the bed" or "it looks old" is mistaken, is choosing the wrong place, that person may need a Hilton or another typical chain hotel. This is a building that is considered a heritage site in Japan. And the staff, the staff also exceeds all expectations of friendliness. We travel with two children, including one of 5 years, and it is not normal for so many attention, such as bringing a blanket - without asking for it - in case the child was cold during dinner. Sanyo-so was the best part of one of the best trips of our lives. EDIT. I just found that the Sanyo-so garden was designed by Japanese garden artist Jihei Ogawa, several of his works are registered by the government as an Important Cultural Property. And many of the buildings were designed by architect Togo Murano -recipient of the Order of Cultural Merit, considered equivalent to the highest rank (Grand Cordon) of the Order of the Rising Sun-. So no, this is NOT just any building, it is not a building for those looking for a typical Hilton, it is a masterpiece of Japanese design.