Exterior
Example of a guest room
Public Bath
Garden and fountain
Open-air bath
149 photos

OTANISANSO

Yamaguchi Prefecture／Nagato City
¥44,000～
Breakfast included ; 2 peopleTax included¥39,600〜
(USD 249.20)

Relax and unwind in a hospitable Onsen Ryokan surrounded by the serene streams and mountains of Nagato.

Nestled by the tranquil Otozure River in Nagato, Yamaguchi Prefecture, the Nagato Yumoto Onsen "Otanisanso" welcomes guests with decor and hospitality that cherish the rich natural beauty of the four seasons. Enjoy moments of relaxation and tranquility away from daily life.

4.88 - The best(189)
Reviews 2th placeReview Ranking in Chugoku
  • This was my second s...

    This was my second stay.Everything was perfect, both the facilities and the service. I also appreciated the very courteous communication when I contacted you in advance.I booked a dinner-and-breakfast Plan, and truly enjoyed the delicious “Nagato no Harameku Kaze” meal made with local ingredients.Please pass my regards on to the head chef as well.Next time, I would like to visit for a Multiple Night Stay.

    maaaru 3/8/2026
  • My Wife’s Birthday

    This was my second stay at Otani Sanso.As expected, it was outstanding.Over the past year, I stayed at well-known Ryokan in Kinosaki Onsen, Yufuin, and Tamatsukuri Onsen, and this one is by far No. 1.The staff’s hospitality is truly unmatched.I would definitely like to visit again.It was wonderful—thank you very much.

    topiko1030 2/23/2026

Facilities and Services

See All
  • Hot spring
  • Room with Open-Air Bath
  • Spa facility
  • Accessibility
Open-air bath / Free-flowing hot spring / Large public bath / Sauna / Outdoor pool / Free shuttle service / Room service
IN15:00～19:30
OUT11:00
Number of rooms98 rooms
PetNot allowed
Your childPermitted

Photo

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Notice from the Accommodation

All public areas and guest rooms within the facility are non-smoking, including electronic cigarettes (except for certain terraces). For smoking, please use the designated smoking areas "The Cigarette Bar" located on the 1st and 2nd floors.

Fuyong Premium
Fuyung Premium (Early Booking)
  • Twin
  • 43㎡
  • Capacity 1~2 people

【Short Stay/1 Night with Breakfast】Check-in at 16:30, Check-out at 9:30. A relaxing trip with Onsen.

IN 16:30～19:30
OUT 09:30
¥44,000～
Breakfast included ; 2 peopleTax included¥39,600〜
(USD 249.20)

【Early Bird 77】Book early to save up to 4000 yen per person. Enjoy a variety of seasonal flavors from Yamaguchi.

IN 15:00～19:30
OUT 11:00
¥52,800～
Dinner and Breakfast included ; 2 peopleTax included¥47,520〜
(USD 299.04)
Akebono・Fuyou Japanese-style Room / Example of 12.5 Tatami

【Short Stay/1 Night with Breakfast】Check-in at 16:30, Check-out at 9:30. A relaxing trip with Onsen.

IN 16:30～19:30
OUT 09:30
¥46,200～
Breakfast included ; 2 peopleTax included¥41,580〜
(USD 261.66)

【Early Bird 77】Book early to save up to 4000 yen per person. Enjoy a variety of seasonal flavors from Yamaguchi.

IN 15:00～19:30
OUT 11:00
¥55,000～
Dinner and Breakfast included ; 2 peopleTax included¥49,500〜
(USD 311.50)
Twin example
Twin
  • Twin
  • 38㎡
  • Capacity 1~2 people

【Short Stay】Check-in at 16:30, check-out at 9:30, save up to 3000 yen per person! Dinner is a seasonal kaiseki meal / 1 night, 2 meals.

IN 16:30～19:00
OUT 09:30
¥50,600～
Dinner and Breakfast included ; 2 peopleTax included¥45,540〜
(USD 286.58)

[Premium Journey to Enjoy ~ Summer Seasonal Kaiseki] Savor the seafood of Kitaura and refreshing summer vegetables. Indulge in locally sourced delicacies carefully selected by our head chef.

IN 15:00～19:30
OUT 11:00
¥57,200～
Dinner and Breakfast included ; 2 peopleTax included¥49,192〜
(USD 309.56)

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Introduction of the Accommodation

A tranquil mountain getaway in a suite.

The greenery of the mountains stretches before your eyes, and the occasional breeze carries the scent of the season. Savor the fresh seasonal flavors, gaze at the star-filled sky, and reflect on the eternal passage of time. At Nagato Yumoto Onsen, once visited by the Choshu lords during the Edo period for healing, immerse yourself in the natural hot spring waters and let time flow. It is a moment to rediscover the self you had forgotten.

Ootani Sansou Suite

The "Otanisanso Suite" room equipped with a sauna and open-air bath.

Private open-air bath
Suite room with open-air bath.

Enjoy the natural hot spring waters of Nagato Yumoto, once visited by the lords of the Choshu domain, with a continuous flow directly from the source. The open-air bath offers stunning views of Nagato's rich nature, including mountains and streams.

Special Kaiseki
Special Kaiseki (Exclusive for Suites)

Enjoying local produce, prepared in local culinary styles, at the local setting.

~Guide to Facilities for Enjoying Ōtani Sansō~

Public Bath
Public Bath
Public Bath
Public Bath
Public Bath
Public Bath
Two large baths overlooking the Onshinkawa stream.

You can enjoy the Onsen of Nagato Yumoto, which has been flowing for approximately 600 years, in a large bath surrounded by nature. The water quality is a simple alkaline Onsen, cherished as "beauty skin water" for its soft touch on the skin. Please relax in various baths such as open-air baths and spacious indoor baths, surrounded by the seasonal mountain scenery.

Riverside terrace
The Terrace星遊
The Terrace星遊
Riverside terrace
Riverside terrace
The Terrace星遊

The Terrace星遊

Terrace to enjoy the nature of Nagato Yumoto

Our facility features terraces that showcase the rich natural scenery of Nagato. Enjoy "The Terrace Seiyu" on the rooftop, offering panoramic views of majestic mountains, or relax at the "Kawadoko Terrace," where you can listen to the gentle murmuring of Otoshi River. Please visit us for a moment of relaxation after a soothing bath.

Club Lounge
Club Lounge
Club Lounge
Club Lounge
Club Lounge
Club Lounge
The Club Lounge Nagato

Exclusive club lounge for guests staying in suites. Enjoy a moment before dinner with seasonal menus and complimentary drinks.

Astronomical dome
Astronomical dome

An astronomical dome equipped with a telescope for observing the starry sky. A specialist will guide you to the celestial objects visible at that time. ※ Closed every Tuesday for maintenance.

Foot bath
Foot bath

There is a footbath next to the garden of the lobby lounge. We also accept drink orders, allowing you to relax and unwind from your travel fatigue.

Facilities and Equipment of Accommodation

  • The room
    The room
  • Hot Springs & Baths
    Hot Springs & Baths
  • Facilities & Services
    Facilities & Services
  • Meal
    Meal

Notice from the Accommodation

  • [New] Save on your trip to Nagato City: “Nagato Premium Accommodation Vouchers” Information

    Nagato City, Yamaguchi Prefecture, will begin selling the digital accommodation voucher “Nagato Premium Accommodation Voucher” via its official LINE account on April 15, 2026.
    The “Nagato Premium Accommodation Voucher” is a great deal: you can purchase one set worth JPY 6,000 for JPY 5,000, making it easier to enjoy your trip to Nagato City. The valid period is from May 12, 2026 to February 28, 2027, and it applies to check-ins from Monday through Friday.
    Of the JPY 6,000 total value, JPY 5,000 can be used toward accommodation charges and JPY 1,000 can be used as a shopping voucher at participating Facilities in the city. Eligible users are guests staying overnight who live outside Nagato City. Vouchers are issued as digital tickets via LINE.
    “Otani Sanso” and “Bettei Otozure” are included as eligible Accommodations for the accommodation voucher (the shopping voucher cannot be used there). Reservations made with Local Payment are eligible even when booked through this site. For details, please check Nagato Tourism Navi “Nanabi.”
    Take this opportunity to make use of these great-value vouchers and enjoy a special stay in Nagato City.


    ■Eligibility: Residents outside Nagato City (Nagato City residents are not eligible to purchase; however, stays including them within the party are allowed)
    ■Offer: One set worth JPY 6,000 (JPY 5,000 accommodation voucher + JPY 1,000 shopping voucher) available for purchase at JPY 5,000
    (The accommodation voucher is JPY 5,000 and the shopping voucher is JPY 1,000.)
    ※Both vouchers are digital and provided via LINE
    ■Sales period: From April 15, 2026 at 10:00 until sold out (first-come-first-served)
    ■Accommodation voucher valid period: Check-in from May 12, 2026 to check-out on February27 ,2027
    ※Blackout dates: Stays on Saturdays/Sundays/public holidays; stays from August8–16 ,2026; stays from December26 ,2026–January3 ,2027
    ■Shopping voucher valid period: May12 ,2026–February28 ,2027
    ■Purchase limit: Up to20 sets(Jpy1000 ) per purchase

    ■General steps for use
    1) Add the official Nagato City LINE account as a friend and purchase (credit card or PayPay)
    2) Make a Reservation at an Accommodation (choose Local Payment)
    ※Not eligible if you pay in advance online.
    3) Use at participating Accommodations or shops/stores in the city
    Accommodation vouchers: Otani Sanso and Bettei Otozure are eligible Accommodations.(Shopping vouchers cannot be used there.)

  • Cocktail DIVE “Not Yet”

    [Event] Spring Cocktail “DIVE ‘Mi’” Announcement

    As spring arrives and a quiet new season begins to unfold, Otani Sanso’s Cocktail Lounge presents “DIVE ‘Mi’,” a cocktail perfectly suited to this time of year—when flowers and grasses begin to bud and the clear air is filled with a gentle sense of life.

    The name “DIVE” evokes the act of leaping in or diving beneath the surface, capturing the fresh feeling of centering yourself amid changing seasons and taking a step into a new world.

    The base is Otani Sanso’s signature chilled sake, “Sansoka,” whose soft umami and clarity bring calm balance to the drink. Layered over it is “Aphrodite Mori,” a fruit-based pearl liqueur with an inviting juniper berry aroma. We then add craft gin “Aobu (Aube),” infused with herbs organically grown in Yuya, Nagato City—where terraced rice fields stretch out against a backdrop of blue sea—adding refined depth to the flavor. Finished with tonic water for light refreshment, rosemary gently lifts the lingering aroma.

    This sake-based cocktail can be described as Otani Sanso’s own Japanese-style gin and tonic—an exclusive harmony of Japanese and Western elements that can only be enjoyed here.

    New beginnings often come with both anticipation and a touch of uncertainty. The shimmering pearl powder in “Aphrodite Mori” expresses the light that shines through those moments. The subtle bitterness and spice of “Aobu” add gentle complexity, while rosemary’s crisp fragrance softly envelops the whole.

    In your glass: serenity—and yet, an unmistakable sense that something new is about to begin.

    This spring, savor an unhurried moment of ease—and the lingering aftertaste of your next step forward—with “DIVE ‘Mi’.”

    ■ Details
    Period: Until Thursday, April 30, 2026
    Hours: 19:00–22:00 (last order 21:30)
    Location: Otani Sanso 1F, Cocktail Lounge
    Price: JPY 1,540 per glass (tax included)

  • Strolling Pass

    [Yamaguchi Sightseeing] Information on the great-value coupon “Sozoro Walk Pass” for Nagato Yumoto Onsen

    The gentle murmur of the Otozure River makes Nagato Yumoto Onsen especially soothing.
    To help you enjoy even more of what this Onsen town has to offer—public baths, street food, and unhurried moments of relaxation—the “Sozoro Walk Pass” has just been renewed.

    The “Sozoro Walk Pass” is a set of three coupons that can be used at participating shops in the Onsen town.
    One set costs 2,000 yen, and depending on what you redeem it for, you can receive services worth up to 3,000 yen—a great-value coupon set.

    With more than 10 participating shops, it can be used whether you are visiting for the day or staying overnight.
    Our Accommodation also participates; at the lobby lounge “Sazanka,” you may enjoy either an eligible drink or warabi mochi.

    Why not take a leisurely stroll along the Otozure River and discover the charm of Nagato Yumoto Onsen?

    ■Coupon-eligible services at Otani Sanso
    ・Service: Choose from warabi mochi, summer mandarin yogurt, summer mandarin squash, or coffee (hot/iced)
    ・Coupons required: 1 coupon
    ・Location: 1F Lobby Lounge Sansoka
    *Closed on休館日 and until 15:00 on the following day

Basic Information

TaxesA Hot Spring Tax of 300 yen per adult (junior high school age and above) will be charged per night.
Card information
VISA / MASTER / JCB / AMEX / DINERS / UnionPay / Debit card
Pets
Not allowed
BreakfastIt varies depending on the accommodation plan.
Your child
You can stay.
Children aged 0 to 6 years (preschool age) can stay with Child Sharing Existing Bedding.
Room service
Available for use
20:30–22:30
Common amenities
  • ○ Shampoo · conditioner
  • ○ Body soap · soap
  • ○ Towel · Bath towel
  • × Body towel · sponge
  • ○ Toothbrush set
  • ○ Comb · Brush
  • ○ Shower cap
  • ○ Hair dryer
  • ○ Shaving
  • × Shaving Gel/Foam
  • × Bath additives
  • ○ Yukata
  • × Nightwear
  • × Bathrobe
  • ○ Slippers
  • × facial cleanser
  • × Toner
  • × Lotion
  • × Makeup remover
  • ○ Cotton swab
  • ○ Cotton
  • × Clothing deodorizing spray
  • ○ Refrigerator
  • × Minibar
  • ○ Electric kettle
  • ○ Tea set (free)
  • ○ Television
  • ○ Safe
  • × Scale
  • × Trouser press
  • × Free morning edition
  • × Pay-per-view broadcast
  • ○ Satellite broadcasting
  • × Video on Demand
  • × Radio
  • × CD player
  • × DVD player
  • × Blu-ray player
  • × Speakers for portable audio
  • × In-room PCs and tablets
Facilities and Features
  • ○ Hot spring
  • ○ Rooms with open-air baths available
  • ○ Open-air bath
  • ○ Free-flowing hot spring
  • ○ Large public bath
  • × Private bath
  • ○ Sauna
  • × Ganbanyoku (rock bathing)
  • × Within a 5-minute walk from the station
  • × Within a 5-minute walk to the convenience store.
  • × Indoor pool
  • ○ Outdoor pool
  • × Pet-friendly
  • ○ Spa facility
  • × Fitness
  • ○ Free shuttle service
  • × Shuttle Service (Paid)
  • ○ Room service
  • × Room Service Available 24 Hours
  • ○ Barrier-free
  • × Childcare services
Outdoor pool
Available period
7/19/2025~8/31/2025
Business Hours
11:00~16:30
Final admission time
16:00
Fee（Guest）
Free
Fee（Non-guest）
---
Children's pool
None
Age restriction
Pool shape
Irregular shape
Pool size
Length 25m
Width 8m
Water depth ～ 100cm
*May incur additional charges depending on the accommodation plan
Esthetic Massage
Available
1. Esthetic Salon *For Women Only Operating Hours: 3:00 PM - 10:00 PM 2. Bettei Otozure Grande Spa *For Both Men and Women Operating Hours: 2:00 PM - 10:00 PM
Fitness gym
None
Public Bath
The number of Public Bath
2
Business Hours
06:00~23:30
Hot spring
Available
Free-flowing
None
Milky hot spring water
None
Additional Information
(Heating)
Remarks
Opening Hours: 6:00 AM - 10:00 AM (Last entry at 9:30 AM), 12:00 PM - 11:30 PM (Last entry at 11:00 PM) *Closed from 10:00 AM to 12:00 PM. ○ First Floor "Seseragi no Yu": Open-air bath, jacuzzi, reclining bath, sauna ○ Second Floor "Komorebi no Yu": Semi-open-air bath, herb bath, reclining bath, sauna
Open-air bath
The number of Open-air bath
2
Business Hours
06:00~23:30
Hot spring
Available
Free-flowing
None
Milky hot spring water
None
Additional Information
(Heating)
Remarks
Opening Hours: 6:00 AM - 10:00 AM (Last entry at 9:30 AM), 12:00 PM - 11:30 PM (Last entry at 11:00 PM) * Closed from 10:00 AM to 12:00 PM. * Located within the large public bath area (2nd floor features a semi-open-air bath).
Room with Open-Air Bath
Hot spring
Available
Free-flowing
Available
Milky hot spring water
None
Additional Information
100% natural hot spring
Remarks
Out of 98 rooms, 21 rooms come with an open-air bath.
Spring quality and benefits

Alkaline Simple Hot Spring

Relieves fatigue, arteriosclerosis, chronic digestive disorders, and muscle pain.

※Regarding the notation of "Gensen Kakenagashi"
In some facilities, heating or adding water for temperature adjustment may be performed. Additionally, please note that in some parts of the facility, the hot spring water may not be free-flowing from the source. For more details, please contact each facility.

SaunaAvailable
Hot stone spaNone
Others■ Cashless Payment: PayPay, LINE Pay, Alipay, d Payment, Merpay, au PAY *Available at the front desk, gift shop, and Restaurant Hagi.

Reviews

Overall Score
4.88
The best (189)
  • Rooms & Amenities
    4.84
  • Facility
    4.88
  • Hospitality & Service
    4.87
  • Meals
    4.87
  • Onsen & Bath
    4.93
  • Satisfaction
    4.86

*Reviews that have been translated from Japanese.*

*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*

Access Information

Address
Yamaguchi Prefecture2208 Yumoto, Fukagawa, Nagato City
TEL：+81-837-25-3300

- Approximately 30 minutes by car from Hagi City.
- Approximately 60 minutes by car from Shimonoseki IC.
- 15 minutes on foot or 5 minutes by car from JR Mine Line Nagato-Yumoto Station.
- Approximately 30 minutes by car from Mine IC on the Chugoku Expressway.
- Approximately 70 minutes by car from Yamaguchi Ube Airport.
- Approximately 60 minutes by car from Yamaguchi City.
- Approximately 30 minutes by car from Akiyoshido Cave and Akiyoshidai Plateau.

■ For Guests Arriving by Car:
The main entrance of our facility is located just beyond a small bridge over the Otoshi River.
- For guests coming via Mine direction → From Route 316, look to your right (there is a small bridge just before the "Right Turn Curve" sign).
- For guests coming via Senzaki/Tawarayama direction → From Route 316, look to your left (you will see a small bridge immediately after turning left at the curve).

Parking Information
Fee
Free for guests
Parking time
---
Parking space
No restrictions
Number of parking spaces
90 cars available Indoor & Outdoor
Valet service
Unavailable
- High-roof vehicles allowed.
- Sports cars (low clearance) allowed.
- Large buses to microbuses allowed.
- Motorcycles and bicycles also allowed.
- Indoor and outdoor parking available.
* For guests arriving by bus, including microbuses, a parking fee of 1,000 yen (excluding tax) per vehicle will be charged.
* Suitable for group parking, such as touring clubs.

Pickup and drop-off information
Available (Free)We offer a free Shuttle Service to JR Nagato-Yumoto Station.
Please inform us of your arrival time in advance.
Otanisanso Sales Promotion Group
TEL: 0837-25-3300 (Reception hours: 9:00 AM - 5:00 PM)

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