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Hot Springs

  • Kobo-no-yu bath "Kobo-no-yu" garden open-air bath·Gentle

    Earth tea red tea, Jade green, Wild grass, lime···.The private source of Isofune “Kobo-no-yu” is a “Nanairo-no-Yu” that changes every moment.

    Sometimes it is a clear green color, it turns into a white milky white like a commercial bath additive, or sometimes it turns into a brown color that makes you feel the redness of the soil.It seems that this happens subtly depending on iron content, acidity, alkalinity, etc. It is said that hot springs that can enjoy such a clear change are unusual nationwide.Since it contains a lot of salt, your skin will be smooth after bathing! It is also called hot water of beautiful skin
  • Kobo-no-yu bath "Kobo-no-yu" outdoor bath·Women's hot water

    Hot spring researcher The richness of the ingredients that make you wonder! The natural power of about 130 bags of commercially available bath salts gently warms your body to the core.
  • Home delivery hot spring Ajiro -up line Isofune no Yu

    This hot spring is a free-flowing hot spring.When using at home, please be sure to observe the following items.
    1 The use of this hot spring is limited to bathing.
    2 The ingredients of this hot spring are very thick and contain a lot of salt, so be sure to dilute it 5 to 10 times before use.
    3 Rinse the bathtub and additional cooking pipes thoroughly after use.If left as it is, the hot spring components may cause corrosion of boiler equipment and piping.If something goes wrong with the device, stop using it immediately.
    Four We are not responsible for any accidents that may occur.
    Email address
    Fax number

    Orders can only be placed by email or fax.. (We do not accept any orders over the phone)
    Please fill in the following items before applying.
    (1) Your name(Furigana)
    (2) Address(Delivery address)
    (3) Contact information
    (4) Application quantity
      PET bottle set
      Dedicated container book
    (5) I Isofune no Yu" and understand and agree to the contents.
    〇〇〇〇Year〇〇Moon〇〇Day Isofune Taro
    ※Please be sure to fill in (1)-(5).Please understand that if you do not fill in even one, we will not be able to accept your order.

    3 If it arrives normally, we will get back to you or reply to you by email within 4 business days.If you do not contact us within 4 business days, can you contact us?

    Four Please transfer the price to the following account.
    Account information
    Mishima credit unions Ajiro branch office
    Current deposit №1755
    Noriyo Uchida, Representative Director of Izu Isofune

    ※We apologize for the inconvenience, but please bear the transfer fee.
    ※After confirming the payment, we will start preparing for shipping.
    Usage fee
    PET bottle 2ℓ 6 bottles set 4000 yen/Dedicated container 20ℓ 3500 yen per bottle(consumption tax,Shipping included)
  • Source tank

Hot Springs

Ajiro Hot Springs(Natural hot spring 100%) Hot Spring Baskdown ※It does not include artificial hot springs

Open Air Bath

Yes (There are also men and women (including time change) · Charges are not allowed)

Private Bath


Number of baths

"Outdoor bath] Man: 1 Female: 1 Mixed Bath: 0
[Indoor bath]Man:1 woman:1 Mixed bathing:0
[Sauna]Man:0 woman:0 Mixed bathing:0

Other bath facilities

Observation bath(Conditioned)

Bath usage conditions

Large Communal Bath:Check-in is from 14:00 to 23:00, and bathing is possible from 6:00 to 9:30 the next morning.The hot spring ingredients are thick and it gets very warm.Please refrain from bathing after drinking.
A private bathroom for outdoor bath:Opening Hour 45 to 60 minutes For 2 people:2,750 yen For 4 to 5 people 3,850 yen  10:00 to 17:00(Last reception 16:00)※There are stone steps and stairs to the large communal bath (indoor bath and open-air bath).There is no change of gender.

Onsen tax

Hot spring tax Adults 150 yen will be charged separately.