Sanyo-so

Travelers can savor authentic Japanese cuisine in a ryokan where serene gardens meet soothing hot springs for a traditional cultural experience

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Where to?

Dates

May 2026

6

June 2026

New Building Deluxe Japanese-Western Room, Non Smoking | Minibar, in-room safe, free WiFi, bed sheets - Sanyo-so (Izunokuni)

Breakfast and dinner served, Japanese cuisine - Sanyo-so (Izunokuni)

Sanyo-so ryokan offers a peaceful retreat near Izu-Mito Sea Paradise. Guests relax in the indoor mineral hot spring and wander through the Japanese garden. The on-site お食事処 restaurant serves local specialties, while shopping facilities and luggage storage enhance the stay.

Wonderful

Popular amenities

Parking included
Free Wi-Fi
Restaurant
Air-conditioning
Breakfast available
Housekeeping

12.737.235 ₫ total

7 May - 8 May

Room options

Check availability for these dates

Tonight

May 6 - May 7

Tomorrow

May 7 - May 8

Deluxe Japanese Room - Annex, Non Smoking

Exceptional

Mountain view
83 sq m
1 bedroom
Sleeps 5
2 Single Beds and 3 Single Futons
Free Wi-Fi

Standard Japanese Room - Annex, Non Smoking

Mountain view
63 sq m
1 bedroom
Sleeps 4
2 Single Beds and 2 Single Futons
Free Wi-Fi

New Building Deluxe Japanese-Western Room, Non Smoking

Mountain view
92 sq m
1 bedroom
Sleeps 5
2 Single Beds
Free Wi-Fi

New Building Japanese Style Suite Room,Non smoking

Garden view
141 sq m
1 bedroom
Sleeps 8
2 Single Beds and 6 Single Futons
Free Wi-Fi

Main Building Japanese Style Suite Room,Non smoking

Garden view
135 sq m
1 bedroom
Sleeps 8
8 Single Futons
Free Wi-Fi

Main building annex

Garden view
95 sq m
1 bedroom
Sleeps 5
5 Single Futons
Free Wi-Fi

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About the area

Izu Nagaoka Onsen, a neighbourhood in Izunokuni, is home to Sanyo-so. Mishima Taisha Shrine and Mishima Sky Walk are notable landmarks, and if an activity is on the agenda, visit Port of Numazu. Don't miss out on a visit to Izu-Mito Sea Paradise. Visit our Izunokuni travel guide

270 Mamanoue, Izunokuni, Shizuoka, 410-2204

What's nearby

Port of Numazu
28 min drive - 15.2 km
Katsuragiyama Ropeway
4 min drive - 2.0 km
Ganjoju-in
4 min drive - 2.4 km
Hojoji Temple
5 min drive - 1.8 km
Izu-Mito Sea Paradise
11 min drive - 6.0 km

Getting around

Izunagaoka Station
12 min walk
Tokyo (HND-Haneda)
120 min drive

Restaurants

ひょうたん寿司
17 min walk
与志富
5 min walk
藤
17 min walk
餃子の㐂むら
18 min walk
あやめ寿し
7 min walk

About this property

Sanyo-so

Upscale ryokan near Izu-Mito Sea Paradise

Located close to Port of Numazu and Mishima Taisha Shrine, Sanyo-so provides an indoor mineral hot spring (onsen), shopping on-site and a coffee shop/cafe. For some rest and relaxation, visit the 2 indoor/outdoor hot springs. The on-site restaurant offers breakfast and dinner. Stay connected with free in-room WiFi, with a speed of 50+ Mbps, and guests can find other amenities such as a Japanese garden.

Other perks include:

Free self-parking
Japanese breakfast (surcharge), hot springs on-site and a lift
Luggage storage

Room features

All guest rooms at Sanyo-so include perks, such as air conditioning, in addition to amenities, such as free WiFi and safes.

More conveniences in all rooms include:

Bathrooms with spring water baths and bidets
43-inch TVs with digital channels
Mini fridges, electric kettles and heating

Similar properties

Separate bathtub and shower, spring water bathtub, designer toiletries

Parking included
Free Wi-Fi
Air-conditioning
Breakfast available

6.828.649 ₫ total

20 May - 21 May

Compare similar properties

Property amenities

Internet

Available in all rooms: Free WiFi
In-room WiFi speed: 50+ Mbps

Parking and transport

Free uncovered self parking on site
Limited on-site self parking

Food and drink

Daily Japanese breakfast available 8:00 AM to 8:30 AM for a fee: JPY 4,500 per person
A coffee shop/cafe
A restaurant
Kaiseki meal

Things to do

2 indoor/outdoor hot springs
Shopping

Family friendly

Mini-fridge

Conveniences

Guidebooks
Limited-hour front desk
Luggage storage

Guest services

Change of bedsheets (on request)
Change of towels on request
Housekeeping (daily)

Outdoors

Garden

Spa

2 indoor/outdoor hot springs
Hot springs open from 3:00 PM - 9:30 AM
Hot springs water temperature - 41 ºC
In-room massages
Public indoor mineral hot springs (onsen)
Public outdoor mineral hot springs (onsen)
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.
Bathroom emergency pull cord
Handrails in stairways
Lift
Well-lit path to entrance
Wheelchairs on site

More

2 floors
Designated smoking areas

Room amenities

Bedroom

Bedsheets provided

Bathroom

Bidet
Free toiletries
Hair dryer
Private bathroom
Shampoo
Shower/bathtub combination
Slippers
Spring water bathtub
Toilet paper
Toothbrush and toothpaste
Towels provided

Entertainment

43-inch TV with digital channels

Food and drink

Electric kettle
Free bottled water
Mini-fridge
Minibar

More

Air conditioning (climate-controlled)
Fusuma (room partition)
Heating (climate-controlled)
Phone
Safe
Tatami (woven mat) flooring
Tokonoma (alcove)
Window screens

Policies

Check-in

Check-in start time: 3 PM; check-in end time: 5:00 PM

Check-out

Check-out before 11 AM

Special check-in instructions

The front desk is open daily from 8:00 AM - 6:00 PM

Front desk staffed during limited hours

This property doesn't offer after-hours check-in

Information provided by the property may be translated using automated translation tools

Access methods

Front desk (limited hours)

Pets

Pets not allowed

Children and extra beds

Children are welcome

Rollaway/extra beds are not available.

Cots (infant beds) are not available

Payment types at the property

Important information

Fees

You'll be asked to pay the following charges at the property. Fees may include applicable taxes:

A bathing tax, collected at the property, may be charged. The bathing tax applies to properties with hot springs and ranges from JPY 150-500 per person, per night based on local regulations. Please note that further exemptions may apply.

We have included all charges provided to us by the property.

Optional extras

Fee for Japanese breakfast: from approximately JPY 4500 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 public bath facility

This property accepts credit cards, debit cards, mobile payments and cash

Mobile payment options include: Alipay, PayPay, Merpay and R Pay

This property reserves the right to pre-authorise the guest's credit card prior to arrival.

Cashless transactions are available

Safety features at this property include a fire extinguisher

This property affirms that it follows the cleaning and disinfection practices of Prince Safety Commitment (Prince Hotels & Resorts)

We should mention

Hot springs access available from 3:00 PM to 9:30 AM

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 on-site public bathing facilities

Property is also known as

Sanyo-so Inn Izunokuni

Sanyo-so Inn

Sanyo-so Izunokuni

Sanyo-so

Sanyo-so Ryokan

Sanyo-so Izunokuni

Sanyo-so Ryokan Izunokuni

Frequently asked questions

Is Sanyo-so pet-friendly?

No, pets are not allowed at this property.

How much does it cost to stay at Sanyo-so?

As of 6 May 2026, prices found for a 1-night stay for 2 adults at Sanyo-so on 7 May 2026 start from 10.526.641 ₫, 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.

How much is parking at Sanyo-so?

Self-parking is free at this property.

What time is check-in at Sanyo-so?

Check-in start time: 3 PM; check-in end time: 5:00 PM. After-hours check-in is not available.

What time is check-out at Sanyo-so?

Checkout is at 11 AM.

Where is Sanyo-so located?

Located in Izu Nagaoka Onsen, this ryokan is within 9 mi (15 km) of Izu-Mito Sea Paradise, Mishima Taisha Shrine and Port of Numazu. Mishima Sky Walk is 12.3 mi (19.8 km) away. Izunagaoka Station is 12 minutes by foot.

Can I cancel my reservation for free and receive a full refund?

Yes, this property offers free cancellation on selected room rates because flexibility matters! Please refer to the property cancellation policy on our site for more details about any exclusions or requirements.

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Sanyo-so Reviews

9.0

Wonderful

9.6

Cleanliness

7.6

Location

9.0

Staff & service

9.0

Property conditions & facilities

Verified

10/10 Excellent

Okan

27 Dec 2025

Liked: Cleanliness, amenities, property conditions & facilities

Amazing place with impeccable facilities, delicious food, and outstanding service.

Stayed 1 night in Dec 2025

Verified

10/10 Excellent

Chung Yin

27 Jul 2024

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Historical onsen ryoken

The onsen Ryoken is a famous one in Japan as the Japanese Emperors had stayed at the estate for a few times. We stayed at a room with private onsen which is excellent. The food was also great and we had a great time.

Stayed 1 night in Jul 2024

Verified

10/10 Excellent

量

25 Mar 2026

Liked: Cleanliness, staff & service, amenities, property conditions & facilities

日本庭園も含め、館内の至る所に和を感じる庭があり、それが非常に癒されました。部屋の内風呂がとても良く、温泉かけ流しでいつでも入れるのが良かったです。スタッフの方も非常に親切で、子連れの滞在客へのサポートもとても丁寧でした。また泊まりたいです。

Stayed 1 night in Mar 2026

Verified

10/10 Excellent

??

18 Sep 2025

Liked: Cleanliness, amenities

スタッフの皆様とても素敵な笑顔で親切でした。村野藤吾の建物も素晴らしかったです。ご飯も美味しく温泉も良かったです。ありがとうございました。

Stayed 1 night in Sep 2025

Verified

4/10 Poor

まゆみ

17 Aug 2025

Liked: Cleanliness, staff & service

Disliked: Amenities, property conditions & facilities

外観、内装が素晴らしいと思い、予約しました。予め『外観なし』と記載されていたので、期待はしていませんでしたが、あまりにも荒れ果てた庭？だったので、一緒に旅行した母親は文句タラタラでした。旅館に泊まると、売店での買い物が楽しみの一つですが、17時閉店の為、行こうと思ったら『終わりました』と言われ、がっかりです。お食事処や、大浴場までの距離も長く、老齢の母には辛かったようです。部屋風呂にも温泉がひいてあり、ゆったりした浴室だったのが、救いでした。

Stayed 1 night in Aug 2025

Verified

8/10 Good

Kenji

6 Dec 2022

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

なかなか良い体験でした

今回は宿泊客が多かったせいか、食事がいつもの雄峰ではなく、奥の広間でした。広間に行く途中のバー共々古く趣きもあり、得した気分になる体験でした。サービスや料理はいつものいい意味で安定したクオリティでゆっくり休むことができました。

Stayed 1 night in Dec 2022

Verified

8/10 Good

Kenji

24 Nov 2021

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

今回も快適に過ごさせていただきました

広くて快適な部屋、散歩にちょうど良い庭、スタッフの気配りが心地よく、5月に続き、2度目の訪問です。今回部屋風呂が前回に比べて広かったので良かったです。食事も前回同様、美味しく、量も多過ぎず我が家には丁度良いです。食事の質を上げて更なる高級路線を目指すか、今のまま、親しみやすい高級感を楽しめる路線にするのか、中途半端な感じはします。

Stayed 1 night in Nov 2021

Verified

10/10 Excellent

Kenji

18 May 2021

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

和のリゾート

都会の喧騒を離れ、素晴らしいお部屋、庭園、温泉をゆったりと楽しむことができました。スタッフの気遣いも心地良かったです。紅葉の季節にまた宿泊したいと思いました。

Stayed 1 night in May 2021

Verified

8/10 Good

NAKAMOTO

31 Jan 2020

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

夕食の量が多すぎ。もう少し少なくして質を上げて欲しい。

Stayed 1 night in Jan 2020

Verified

10/10 Excellent

Verified traveller

13 Oct 2019

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

大変落ち着いたホテル

緑多い広々とした敷地、趣のあるお部屋、館内全体、特に廊下がゆったりと設けられており、その余裕感たっぷりの空間を常に感じながら心底ゆっくりと過ごす事ができました。是非また利用したいと感じられるホテルです。

Stayed 1 night in Oct 2019

Verified

8/10 Good

Verified traveller

19 Mar 2019

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

庭園は素晴らしい

温泉、その他の施設は二重丸。皺が寄った廊下の絨毯は残念。晩飯も期待した程では無い。庭園は素晴らしい。

Stayed 1 night in Mar 2019

Verified

10/10 Excellent

Verified traveller

29 Jan 2018

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

まるで別荘のような旅館

壮大な庭園を中心とした、小さな集落のような旅館です。岩崎家の別荘を生かしながら、当時の優雅な暮らしに思いを馳せながら、別宅のように過ごせるのがここの魅力です。

Stayed 1 night in Jan 2018

Verified

6/10 Okay

まさよし

14 Jan 2017

Disliked: Staff & service

今まで何回か泊まりましたが、だんだんサービスが悪くなっているような気がします❗ 今回はデラックスルームを頼みましたが、かなり狭いへやでした。

Verified

8/10 Good

ayako

31 Aug 2016

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

庭の素晴らしい宿。

素晴らしい庭の案内が20分くらい行われた．とてもよかった。食事は、期待ほどではなかった。次回は純日本的な部屋に泊まりたいと、思いました。趣があってよさそうです。今回のベットの部屋も広くて清潔感にあふれていた。

Verified

8/10 Good

れん

22 Aug 2016

Liked: Cleanliness, property conditions & facilities, room comfort

Disliked: Staff & service

和溢れる旅の常宿

高級感があり快適な時間を過ごすことができました。特に内風呂が最高です。ただ、女中さんは高齢な方が多く、勘繰り過ぎかもしれないですが、言葉が嫌味に感じる事が多々ありました。悪気は無かったのだとは思いますが…。

Verified

10/10 Excellent

Yasuaki

13 May 2025

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Stayed 1 night in Apr 2025

Verified

10/10 Excellent

Verified traveller

8 Mar 2025

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Stayed 1 night in Mar 2025

Verified

10/10 Excellent

Nadia

28 Jun 2024

Liked: Cleanliness, staff & service, property conditions & facilities

Stayed 1 night in Jun 2024

Verified

10/10 Excellent

Joo-young

25 Apr 2024

Stayed 1 night in Apr 2024

Verified

8/10 Good

Verified traveller

15 Jul 2021

Stayed 1 night in Jul 2021

Sanyo-so

Choose dates to view prices

Photo gallery for Sanyo-so

Reviews

Popular amenities

Room options

Check availability for these dates

View all photos for Deluxe Japanese Room - Annex, Non Smoking

Deluxe Japanese Room - Annex, Non Smoking

View all photos for Standard Japanese Room - Annex, Non Smoking

Standard Japanese Room - Annex, Non Smoking

View all photos for New Building Deluxe Japanese-Western Room, Non Smoking

New Building Deluxe Japanese-Western Room, Non Smoking

View all photos for New Building Japanese Style Suite Room,Non smoking

New Building Japanese Style Suite Room,Non smoking

View all photos for Main Building Japanese Style Suite Room,Non smoking

Main Building Japanese Style Suite Room,Non smoking

View all photos for Main building annex

Main building annex

About the area

What's nearby

Getting around

Restaurants

About this property

Sanyo-so

Similar properties

Ishinoya Izunagaoka (TKP Hotels & Resorts)

Property amenities

Internet

Parking and transport

Food and drink

Things to do

Family friendly

Conveniences

Guest services

Outdoors

Spa

Accessibility

More

Room amenities

Bedroom

Bathroom

Entertainment

Food and drink

More

Policies

Check-in

Check-out

Special check-in instructions

Access methods

Pets

Children and extra beds

Payment types at the property

Important information

Fees

Optional extras

You need to know

We should mention

Property is also known as

Frequently asked questions

Have a question?

Reviews

Sanyo-so Reviews

Wonderful

9.6

7.6

9.0

9.0

Reviews

10/10 Excellent

Okan

Okan

10/10 Excellent

Chung Yin

Historical onsen ryoken

Chung Yin

10/10 Excellent

量

量

10/10 Excellent