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Shimabara Onsen

Natural hot spring with sourced springs

Shimabara Onsen, has adopted the unusual "hot spring centralized management" system in Showa (time period) across the country.
Currently, the hotel also draws from Masui Pond No.2 source, which has a hot spring water temperature of 41.3 ° C and a day amount of about 53,345 tons.

Shimabara Onsen is colorless and clear (*) and can be neutral in nature, it can be bathed without touching the skin gently, especially for cuts, burns and chronic skin diseases.
※Hot spring ingredients may become turbid by contact with air.

★About precipitation and adhesion of black substance in the Large Bath★
With source change, there are black deposits in the bathtub, but due to hot spring ingredients, it is harmless to the human body.
Manganese ions are contained in hot spring ingredients, oxidized by touching oxygen in the air and turned black.
If you rinse with hot water it will fall, so please drop it well when you leave the Large Bath.
Shimabara Onsen you can understand that it is due to fountain quality of Shimabara Onsen, thank you.

Information on the Large Bath

  • Open Air Bath

  • Japanese cypress bath

  • Observation Large Bath

  • Perspective sauna

  • Service item

    shampoo, rinse, Body Soap, Soap, Hairdryer, hairbrush, Swab, razor, Hair tonic, Other service items(Hair oil, All in one gel etc.)
  • Break time "Ikkyu An"

    ●Cool·Tea corner(Free)
    ●Alcohol vending machine
    ●Smoking area

Hotspring Information

Hot Springs

Shimabara Onsen(Natural hot spring 100%)Hot Spring Baskdown ※It does not contain artificial hot springs and is muddy hot water

Hot Spring Qualities

Sodium · Magnesium bicarbonate salt hot spring(Neutral hypotonic hot spring)


Neuralgia, muscle pain, Arthralgia, Frozen, Motor paralysis, Joint stiffness, A bunch, Awkward, Chronic gastrointestinal disease, Hemorrhoid, Coldness, Recovery period after illness, Recovery from fatigue, Health Promotion, Incision, burn, Chronic skin disease


Acute illness (especially when there is fever), active tuberculosis, malignant tumor, heavy heart disease, respiratory insufficiency, renal failure, hemorrhagic disease, advanced anemia, other diseases generally undergoing pathogenesis, pregnancy Last term


Heating circulation type


Shiosai-kan 5th Floor

Utilization time

From 5:00 am to 9:00 am / 3 pm to 12 pm (sauna only at 10:00 pm)
Men and women exchange system in the morning and afternoon.The exchange place will change according to the day.

Onsen tax

Adult(s)(12 years and over):150 yen
Children(11 years old or younger):Free