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Hot Springs

  • A "spring of Kenko-no-yu" with a smooth spring quality.

    A spacious large outdoor bath, a private outdoor bath in the 12 rooms, a relaxing inner bath for all the rooms, and a mysterious cave bath.

    The abundant hot water that overflows is the “Kenko-no-yu” with a smooth spring quality. It will heal your body and mind.The feature of Ota Onsen is that it contains a lot of "metasilicic acid"."Metasilicic acid" is said to be a natural moisturizing ingredient, promoting the metabolism of the skin, it is said to make it slippery.
  • Large Communal Bath

  • Cave bath

  • Guest room open-air bath(An example)

  • In-room bath(An example)

  • Hotspring Information

    Hot spring bath hours
    Bathing time is from 6 o'clock early in the morning until 10:00 at night.
    Hot spring bathing category
    Both men and women have a cave bath, and from 7 p.m., we will swap outdoor bath · Cave Open-air Bath For Women and Men.
    Hot spring qualities
    Na - chloride·Bicarbonate·Sulfate fountain(Baking soda·Glauber's salt·Salt fountain)
    "Source name", Ota Onsen (Yume-no-yu)
    "Outbreak area", 5924 Manganji, Minamioguni Town, Aso County, Kumamoto Prefecture
    "Type of hot water", Natural Hot Springs(Discharge·Circulation combined formula, Addition of water)
    "Amount of discharge", 50 L / min(Motive pump)
    "Outbreak situation", Saku Izumi, Drilling depth 163 m
    "Front Temperature", 67.7 ° C(Temperature 12.1 ℃)
    "Hydrogen ion concentration", pH 8.2
    "Component total", 1,732.1 mg / kg
    "Evaporation residue", 1,497 mg / kg
    Neuralgia, muscle pain, arthralgia, frozen shoulder, motor paralysis, joint stiffness, burning, sprains, chronic gastrointestinal disease, hemorrhoids, chilling, chronic, recovery period after recovery, fatigue recovery, health promotion, galling, burns, chronic skin disease, weakness Children, chronic gynecological diseases, arteriosclerosis
    Not including artificial hot springs Open-air bath: Yes (There are also men and women (including time change) · Not eligible)
    Usage fee
    Hotspring tax adult 150 yen separately.