1. Top
  2. Hot Springs

Hot Springs

Overlooking the Pacific Ocean and the Oni-no-sentaku-ita

The large observation bath is a natural hot spring with a source temperature of 44°C (heated).
You can enjoy the "beautiful skin bath" with a spectacular view of the "Oni-no-sentaku-ita" in front of you.

The private open-air bath in the annex is also very popular.
Enjoy a relaxing time surrounded by gentle water containing natural ions.
  • 3rd floor observation bath

    The location overlooking the vast ocean is attractive.
    You can enjoy the magnificent scenery, overlooking the national Natural Treasure, "Oni-no-sentaku-ita."
    In addition to the spacious bathtub, there is also a sauna.
    *It will be renovated into an "auto-loyly sauna" in January 2026.
    Enjoy a relaxing time in our "beautiful skin baths" that will soothe your soul.

    ◆To our guests
    A separate hot spring tax of 150 yen will be charged to those aged 12 and above.

    ◆An entry fee for day-use bathing(All prices include tax)
    Weekdays: Junior high school students and above: 700 yen / 3 years old and above: 400 yen
    Saturdays, Sundays, and public holidays: Junior high school students and older: 900 yen / 3 years old and older: 500 yen
    *The above rates are valid until March 31, 2026.
    *Please check the latest information for rates after April 1, 2026.

    The view from the veranda is a great view of the Pacific Ocean.・・・

    Hot spring bath hours
    【Accommodations】15:00 to 23:00 /6:00 to 9:00 "Day trip" 10:30 to 21:00(Reception until 20:00)
    Characteristics
    [Supplies]Shampoo, conditioner, body soap, face wash, makeup remover
    [Facilities]Jet bath, sauna, cold bath(We do not have out-door bath.)
    [locker]There are no lockers with keys in the changing rooms.
     Paid lockers (100 yen) are available in front of the large bath entrance.〈Coins will not be returned〉

    [To our guests]
    *The facility is closed after 23:00 and 9:00 for cleaning.
    *The sauna is available from 6:30.

    [An entry fee for day-use bathing]
    *Specific business days include the New Year holidays, Golden Week, Obon, Silver Week, etc.
    *Business hours may be shortened on certain business days.
     For the latest information, please check the announcements on the top page or on Instagram.

    ! Great value coupon tickets!  Tickets are sold at ticket vending machines.
    ≪Purchases made by March 31, 2026≫11 sheets 7,000 yen(Tax included) 
    ≪Purchases made after April 1, 2026≫11 sheets 8,000 yen(Tax included) 
    *Tickets purchased before March 31st can be used from April 1st onwards.
    *The coupon tickets can also be used on Saturdays, Sundays, public holidays and certain business days.
    Cautions
    *Towel rental is an extra charge.
    *According to prefectural regulations, children over 8 years old or over 120cm tall are not allowed to bathe together.
    *We will not allow anyone with tattoos (including stickers) to use the facility.
     If a staff member is found to be bathing, you will be asked to leave the facility.
     Please understand that we cannot refund the bathing fee on the day or any purchased tickets.
    *Bathing tickets with validity periods are only valid within the period.
    *Customers with a multi-ride ticket or bathing ticket can also use the facility on Saturdays, Sundays, public holidays, and certain business days.
  • Separate private open-air bath(outdoor)

    Have the magnificent view that unfolds before your eyes all to yourself.
    This is a private bath where you can relax while feeling the nature of Aoshima.
    You can enjoy a special moment without worrying about those around you.
    Enjoy a luxurious and relaxing time in a private space.

    ◆To our guests
    1,100 yen/45 minutes(Tax included)
    *Please make a reservation at the front desk when checking in on the day.

    ◆An entry fee for day-use bathing(All prices include tax)
    60 minutes weekdays 2,500 yen/Saturday, Sunday, and holidays 3,000 yen/3,500 yen on specific business days
    ①10:30 to 11:30 ②11:45 to 12:45 ③13:00 to 14:00 ④14:15 to 15:15

    Open a small window and take in a superb view. Please spend a luxurious time.・・・

    Hot spring bath hours
    【Accommodations】15:30 to 23:15 /7:00 to 9:00 "Day Trip" 10:30 to 15:15
    Characteristics
    [Supplies]Shampoo, conditioner, body soap, face wash, makeup remover
    [Facilities]Open-air bath, changing room (there is no air conditioning in the changing room), 1 hair dryer, toilet
    [Location]It is located in a detached building (outside the building), about a 1-2 minute walk away.
    *There are about 15 steps in front of the entrance.

    [To our guests]
    *Reservations for the private open-air bath can be made at check-in on the day.Advance reservations are not accepted.
    *If you make a reservation by phone or Official website, there are plan available for free.
    Please call or check the details page of each plan to find out which plan are eligible.

    [An entry fee for day-use bathing]
    *After 15:15, the facility is exclusively for hotel guests.
    *Reservations can be made by phone up to one week in advance.
    *Specific business days include the New Year holidays, Golden Week, Obon, Silver Week, etc.
    *Business hours may be shortened on certain business days.
     For the latest information, please check the announcements on the top page or on Instagram.
    Cautions
    *There are no rest areas.(Only the open-air bath and changing room are available.)
    *In warmer seasons, there may be insects such as bush mosquitoes.
    *The open-air bath does not have a roof.In rainy weather, the facility may be closed depending on the situation, such as before or after a typhoon.

    *It is located about a 1-2 minute walk away.(The path to the open-air bath is outside.)
    *It gets dark at night, so please be careful of your footing when moving around.
     It gets cold from autumn to spring, so we recommend bringing a jacket.
    *There are about 15 steps before the entrance.If you need assistance going up or down stairs, please feel free to ask our staff.
  • Bathhouse amenities

    Characteristics
    [Amenities]Lotion, emulsion, hair tonic, hair liquid, etc.
    *Some lotions, shampoos, conditioners, facial cleansers, and makeup removers are sold in the shop.

    [Supplies]Hair dryer
    *There are no lockers with keys in the changing rooms.
    *Paid lockers (100 yen) are available in the hallway in front of the large bath entrance.
    (Please understand that coins will not be returned.)
    Cautions
    *amenities such as lotion are provided in the large public bath.(Not available in the open-air bath)

    *For day-trip hot springs, the following amenities are available at an additional charge.(Separate from bathing fee/All prices include tax)
     Face towel: 150 yen
     Bath towel (rental): 350 yen
     Toothbrush 110 yen
  • Rest area in front of the large bath

    Characteristics
    We provide a rest area for guests using the large public bath.
    Please relax and relax after taking a bath.
    [Facilities]Paid massage chair/vending machine

    *It is not a large rest area like a large hall.(Space for about 10 tatami mats)
    *Please refrain from bringing in packed lunches or other items.
    *Please understand that there are no areas within the facility where you can bring in food.
     Lunch and dinner are served in kaiseki style only (advance reservations required).

Hot Springs

Aoshima Onsen

View large public bath

Yes(Sauna available,No open-air bath)

Private Bath

Yes

Number of baths

[Large Communal Bath]Man:1woman:1 mixed bathing:0
[Sauna]Man:1woman:1 mixed bathing:0
[Private private outdoor bath]two parts

Hot spring tax

Guests staying at the hotel will be charged a separate hot spring tax of 150 yen per adult.

Efficacy

《Contraindication》
Active illness (especially when fever is present), active tuberculosis, advanced malignant tumors, severe anemia, and other conditions that cause significant physical weakness, severe heart or lung disease that makes the slightest movement short of breath, severe kidney disease that causes swelling, gastrointestinal bleeding, visible bleeding, and acute exacerbation of a chronic illness

《Indication》
Chronic pain or stiffness in muscles or joints (chronic stages of rheumatoid arthritis, osteoarthritis, lower back pain, neuralgia, frozen shoulder, bruises, sprains, etc.), muscle stiffness due to motor paralysis, sensitivity to cold, peripheral circulatory disorders, decreased gastrointestinal function (stomach upset, intestinal gas buildup, etc.), mild high blood pressure, impaired glucose tolerance (diabetes), mild hypercholesterolemia, mild asthma or emphysema, hemorrhoid pain, autonomic nervous system instability, various symptoms caused by stress (sleep disorders, depression, etc.), recovery from illness, recovery from fatigue, health promotion, cuts, dry skin

*Our hot springs are not drinkable.
*It is not a source spring. It is a semi-circular hot spring with no hydration and heating.

Hot Spring Qualities

Sodium bicarbonate/chloride hot spring(Weakly alkaline, high temperature hot spring)
source:pH 8.4,44℃