An Onsen property overlooking Tsunashiro Bay. A serene space that combines tradition and modernity.

Enjoy the natural onsen water flowing freely, with all rooms offering ocean views. Within the Facility, you can experience six different baths, including a panoramic bath overlooking Ajiro Bay. The seafood kaiseki cuisine, featuring abundant local seafood, is another unmissable attraction.

  • I visit Ajiro for fishing and always choose this accommodation as my regular stay. It's so comfortable that I often end up extending my stay. The view is great, and the private bath is absolutely amazing. I will continue to support you!

    mw.k 8/1/2025
  • I stayed in a Japanese-style room on the first floor. It felt as comfortable as being back at home. The meals were plentiful but delicious. I was able to relax and enjoy the Onsen. Thank you very much.

    癒されたいな。 7/4/2025

Facilities and Services

See All
  • Hot spring
  • Room with Open-Air Bath
Open-air bath / Free-flowing hot spring / Large public bath / Private bath / Within a 5-minute walk from the station / Within a 5-minute walk to the convenience store.
IN14:00~17:30
OUT10:00
Number of rooms22 rooms
PetNot allowed
Your childPermitted

【Room Only/No Meals Included】Free-spirited Atami trip with flexible time and meals × Complimentary private bath

IN 16:00~20:00
OUT 10:00
¥19,560
No meals ; 2 peopleTax included¥19,170
(USD 121.13)

【BREAKFAST ONLY】Relaxing Onsen × Large dried fish in the town of Ajiro - Breakfast Plan

IN 14:00~20:00
OUT 10:00
¥25,300
Breakfast included ; 2 peopleTax included¥24,794
(USD 156.67)

【Room Only/No Meals Included】Free-spirited Atami trip with flexible time and meals × Complimentary private bath

IN 16:00~20:00
OUT 10:00
¥23,000
No meals ; 2 peopleTax included¥22,540
(USD 142.43)

【BREAKFAST ONLY】Relaxing Onsen × Large dried fish in the town of Ajiro - Breakfast Plan

IN 14:00~20:00
OUT 10:00
¥31,060
Breakfast included ; 2 peopleTax included¥30,440
(USD 192.35)

【Room Only/No Meals Included】Free-spirited Atami trip with flexible time and meals × Complimentary private bath

IN 16:00~20:00
OUT 10:00
¥25,300
No meals ; 2 peopleTax included¥24,794
(USD 156.67)

【BREAKFAST ONLY】Relaxing Onsen × Large dried fish in the town of Ajiro - Breakfast Plan

IN 14:00~20:00
OUT 10:00
¥28,760
Breakfast included ; 2 peopleTax included¥28,186
(USD 178.10)

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Accommodation Suitable For Large Groups

Accommodation With Breakfast And Dinner Buffet

Ranking Of Popular Accommodation With Hotel Buffet

Ranking Of Accommodation With Delicious Dinner Buffet

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Accommodation With Easy Access To Cultural Facilities

Accommodation With All-You-Can-Drink Plan

Introduction of the Accommodation

Room

Room

The modern-style Room features beautifully textured earthen walls. These walls, crafted using traditional Japanese techniques, harmonize with modern furniture to create a relaxing space. In addition to modern Rooms, we also offer traditional Japanese-style Rooms. You can choose according to your preference. All Rooms boast ocean views, with the panorama of Ajiro Bay spreading out before you.

Meal
Meal

You can enjoy a seafood kaiseki meal featuring fresh seafood such as abalone, Ise lobster, turban shell, and red sea bream, caught at the nearby Ajiro Port. Our head chef, Yasuo Suzuki, skillfully prepares and presents the bounties of Ajiro's sea.

Onsen and bath
Onsen and bath

We take pride in offering high-quality hot spring water sourced from our private spring, supplied to all baths from the large communal bath to the guest room baths. With non-circulating spring water, you can enjoy a tour of six baths within the facility. Particularly, the sea views from the private panoramic hinoki baths "Unkai" and "Bōyō" are exceptional.

Facilities and Equipment of Accommodation

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

Notice from the Accommodation

  • November 1, 2025: Private Panorama Bath "Boyo" - BRAND NEW OPEN

    The renovation of the private bath with an ocean view, "Boyo," has been completed earlier than scheduled and is now open from today with a fresh new look.

  • About Atami and the Onsen at TAISEIKAN

    There are 281 Onsen sources in Atami City. Over 60% of these are located in the central area of Atami, while approximately 10%, or 27 sources, can be found in South Atami (Taga and Ajiro areas), where Taiseikan is situated. However, only a portion of accommodations own their own Onsen sources.

    Let’s take a closer look at the water quality. Most Onsens in Atami, including Taiseikan's, feature chloride springs known for their "salty" nature. These waters are particularly effective for warming the body, improving blood circulation to relieve fatigue and stiffness, and even aiding recovery from injuries. Additionally, they are considered gentle on the skin with minimal risk of overexposure.

    The average mineral content across all Onsens in Atami is about 6.5g per kilogram of water. In comparison, Taiseikan boasts an impressive mineral content exceeding this average by more than 2.5 times at 17.7g per kilogram.

    At Taiseikan, we strive to provide "raw" Onsen water with minimal dilution whenever possible. As a result, you may initially find it hotter than your usual bathwater at home; however, after washing your body and entering again for a second soak, you’ll find it much more comfortable as your body adjusts to the temperature. The refreshing sensation after bathing is one of the unique pleasures of Taiseikan’s Onsen—please enjoy it to your heart’s content!

  • For Guests Staying on or After April 1: About the Accommodation Tax

    From April 1st, guests staying at our accommodation will be required to pay an Accommodation Tax in addition to the Accommodation Fee.
    Details are as follows. We appreciate your understanding and cooperation.

    (Excerpt from Atami City Official Website)

    Who is required to pay the Accommodation Tax (Taxpayer):
    ● Individuals staying at accommodations located within Atami City and paying an Accommodation Fee, including:
     - Facilities operating under the Ryokan Business Act (Ryokan, Hotel operations, or Simple Lodging operations)
     - Residences operating under the Private Lodging Business Act (Minpaku)

    Exemptions from the Accommodation Tax:
    - Children in elementary school or younger
    - Participants of school events involving overnight stays such as study trips
    - Individuals recognized by the mayor as requiring evacuation due to disasters or other reasons
    - Others deemed necessary by the mayor for public interest

    Accommodation Tax Amount (Rate):
    200 yen per person per night

Basic Information

Card information
VISA / MASTER / JCB / AMEX / DINERS / UnionPay
Pets
Not allowed
BreakfastThere is no information about breakfast.
Your child
You can stay.
Room service
Not available
Common amenities
  • ○ Shampoo · conditioner
  • ○ Body soap · soap
  • ○ Face towel
  • ○ Bath towel
  • ○ Body towel · sponge
  • ○ Toothbrush set
  • ○ Comb · Brush
  • ○ Shower cap
  • ○ Hair dryer
  • ○ Shaving
  • ○ Shaving Gel/Foam
  • × Bath additives
  • ○ Yukata
  • × Pajamas
  • × 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
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
Esthetic Massage
None
Fitness gym
None
Public Bath
The number of Public Bath
2
Business Hours
14:00~10:00
Hot spring
Available
Free-flowing
Available
Milky hot spring water
None
Additional Information
100% natural hot spring (Add water)
Remarks
At 24:00, we will switch the male and female areas. During this time, there will be approximately 30 minutes of unavailability due to maintenance. The Onsen features a continuous flow from the source, but water may be added for temperature adjustment.
Open-air bath
The number of Open-air bath
2
Business Hours
14:00~10:00
Hot spring
Available
Free-flowing
Available
Milky hot spring water
None
Additional Information
100% natural hot spring (Add water)
Remarks
At 24:00, we will switch the male and female areas. During this time, there will be approximately 30 minutes when the facility is unavailable due to maintenance. The Onsen features a continuous flow from the source, but water is added to adjust the temperature.
Private bath
The number of Private bath
2
Business Hours
14:00~10:00
Hot spring
None
Free-flowing
Available
Milky hot spring water
None
Additional Information
100% natural hot spring (Add water)
Remarks
No Reservation is required. Availability can be checked in front of the elevator within the facility. Details will be explained after check-in. The Onsen is a natural hot spring, but water is added to adjust the temperature. *At night, there is approximately 15 minutes of downtime in each area for maintenance.
Room with Open-Air Bath
Hot spring
Available
Free-flowing
Available
Milky hot spring water
None
Additional Information
100% natural hot spring (Add water)
Remarks
The Onsen flows directly from the source, but water is added to adjust the temperature.
Spring quality and benefits

Sodium Calcium Chloride Spring

Neuralgia, muscle pain, joint pain, frozen shoulder, chronic digestive disorders, hemorrhoids, cold sensitivity, chronic skin diseases, post-illness recovery period, fatigue recovery, etc.

※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.

SaunaNone
Hot stone spaNone
Others Wheelchair accessible/Wheelchair rental available/Western-style toilet in guest rooms/Braille guidance within the facility/Handrails in public bath tubs/Assistance for bathing in public baths available/Meals accommodating allergies can be provided/Assistance and support by facility staff available ※Barrier-free facility contents and service scope may vary depending on the property. To ensure a comfortable and worry-free stay, please confirm directly with the property in advance.
About Hygiene Measures
We sincerely appreciate your continued support and patronage. At Gensen Yuyado Taiseikan, as part of our measures against the novel coronavirus (COVID-19), we prioritize the health and safety of our guests and employees. To ensure that our guests can use our Property with peace of mind, we are implementing the following measures. We kindly ask for your understanding and cooperation. 【Measures in Public Spaces】 1. Installation of additional disinfectants (alcohol, hypochlorous acid water, etc.) We have installed additional disinfectants in areas such as the lobby, bathhouse entrances, and dining venues to create an environment that is easier for guests to use. Additionally, during in-Room dining services, our staff will carry disinfectants and sanitize tables and other surfaces before serving meals to ensure guests can dine with peace of mind. 2. Strengthening regular disinfection We are conducting alcohol disinfection of frequently touched areas as needed. 3. Wearing masks during customer interactions To consider the health and safety of our guests and public hygiene, our customer service staff wear masks. 4. Health check for staying guests At check-in, we request guests to fill out a health questionnaire. 5. Temporary suspension of esthetic services and game corner operations For the time being, these services will be suspended. 【Measures for Employees】 1. Wearing masks during commuting Masks are distributed to employees, and wearing them during commuting is mandatory. 2. Health checks at work Employees are required to check their temperature and sanitize their hands upon arrival at work. Employees with a fever of 37.5°C or higher or those feeling unwell are instructed to stay at home. 3. Thorough disinfection in backspaces and during service Disinfectants (alcohol, hypochlorous acid water, etc.) are installed in backspaces, and service staff are required to carry them to ensure thorough disinfection during guest services. 4. Establishing a management system for unwell employees We have introduced guidelines for actions during illness and a system to manage employees' health conditions. 5. Restricting non-essential outings and attendance at gatherings Employees are instructed to refrain from non-essential outings, overseas travel, and attending gatherings, events, or workplace meals involving large numbers of people. 【Requests to Guests】 ● To ensure a safe environment for all, we kindly ask for your cooperation in using disinfectants upon arrival at the Property. ● Guests with a fever or feeling unwell are kindly requested to refrain from visiting the Property. ● If you feel unwell during your stay, please inform the nearest staff member. ● If you require a Receipt or accommodation certificate issued under a name different from the Reserver (e.g., company name), please inform us at check-in (if there is a specific form, please submit it at check-in). To alleviate congestion during check-out, we appreciate your cooperation. ● For the same reason as above, we kindly ask you to refrain from individual payments (splitting bills or separate payments for each person) during settlement. ● Additionally, some services that are considered standard for a Ryokan or services we have previously provided may be suspended to prevent the spread of COVID-19. We kindly ask for your understanding and cooperation. ※ Please note that the above measures may be updated in accordance with policies set forth by the Japanese government and related organizations. In such cases, we will provide further notice.

Reviews

Overall Score
4.35
Good (22)
  • Rooms & Amenities
    4.27
  • Facility
    4.23
  • Hospitality & Service
    4.64
  • Meals
    4.21
  • Onsen & Bath
    4.45
  • Satisfaction
    4.27

*Reviews that have been translated from Japanese.*

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

Access Information

Address
Shizuoka PrefectureAtami-shi, Shimo-Taga 141
TEL:+81-557-68-2221

Alight at Ajiro Station on the JR Itō Line, 3 minutes on foot
From Tōmei Atsugi IC, via Odawara-Atsugi Road Ishibashi IC, head south 17 km on Route 135

Parking Information
Fee
Parking fee per night for guests ¥550
Parking time
From check-in to check-out
Parking space
No restrictions
Number of parking spaces
15 cars available outdoor
Valet service
Unavailable

Pickup and drop-off information
UnavailableAs it is close to the nearest station, we do not provide Shuttle Service.

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