

Hot Springs
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High-quality self-heating hot springs nurtured by the power of nature in Okuaizu. Relax in the superb natural hot spring.
The quality of Azuki Onsen is alkaline and gentle to the elderly and children, with a mild, mildly stimulating feel. It is a rare self-heating spring that gushes out (gushes out) by the power of nature, and is truly a bounty of hot water from Okuaizu. We offer a variety of baths, including two large baths with different themes of stone and wood, as well as private baths and guest room baths with free-flowing hot-spring water.
About Azuki Onsen
Azuki Onsen got its name from the fact that in the past, hunters found various wild animals healing their wounds in the hot water that gushed out from the roots of azuki beans. Surrounded by deep wilderness, the hidden hot springs that have been passed down from generation to generation in Okuaizu continue to heal and enrich us even today.
Ishi-no-Yu(Main Building Large Communal Bath)
The indoor bath is a massive stone bathtub that warms the body from the core with its heat-retaining effect. The open-air baths are luxuriously made of natural rocks and have a rustic atmosphere, allowing you to enjoy the fresh greenery, autumn leaves, snowy landscapes, and the natural beauty of Okuaizu, which has a completely different look throughout the year.
Hours of use 3:00 p.m. - 0:00 a.m. / 5:30 a.m. - 9:00 a.m. the next morning (*Men and women change at 0:00 a.m.)
Ki-no-Yu(Main Building Large Communal Bath)
Both the open-air and indoor baths are richly made of natural Japanese cypress, and their peaceful fragrance and gentle touch enhance relaxation. Please enjoy the healing time while becoming one with nature in the brightly lit open-air bath.
Hours of use 3:00 p.m. - 0:00 a.m. / 5:30 a.m. - 9:00 a.m. the next morning (*Men and women change at 0:00 a.m.)
Family Bath(Main Building Private Bath)
For those who wish to take a leisurely bath without worrying about their surroundings, we recommend the private baths (for a fee) with free-flowing hot-spring water. The baths are designed with no steps from the changing room to the bathroom, and the bathtubs are equipped with handrails for the comfort of the elderly. Please spend a waterless moment with your spouse or family.
Available from 3:00 p.m. to 9:00 p.m. (50 minutes / 1,100 yen)
Annex Private Open Air Bath
All of the five “detached” buildings have indoor baths with free-flowing hot-spring water and stone-piled open-air baths for the exclusive use of the guest rooms. The open-air baths have two bathtubs of different depths and temperatures, and the shallow bathtub with a temperature of approximately 2℃ lower allows guests to enjoy a relaxing soak. Because the source of the water is hot, you can adjust the water temperature to your preference with natural spring water from Minamiaizu Hirasawa.
Available 24 hours a day for guests staying in the annex
Main Building Private Bath
The two special rooms in the main building (Japanese-style room and Western-style room) are equipped with guest baths. The luxurious hot spring water is supplied from the source, so you can enjoy the hot spring water of Shodoshima whenever you like without having to go to the main baths. Please relax to your heart's content while feeling the warmth of the wood in the hinoki bathtub.
Guests staying in “Special rooms (Japanese-style room, Western-style room)” in the main building can use the facilities 24 hours a day.
Spring Quality and Efficacy
- Nature of spring
- Simple hot spring (weakly alkalline hypotonicity elevated temperature spring)
- Gushing pattern
- artesian aquifer
- Source temperature
- 62.1℃
- Hydrogen ion concentration
- PH8.2
- Amount of discharge
- 300 liters/min
- For drinking
- Not drinkable
- Efficacy
- 【General indications】Chronic pain or stiffness in muscles or joints (chronic phase such as rheumatoid arthritis, osteoarthritis, low back pain, neuralgia, frozen shoulder, bruise, sprain), Muscle stiffness in motor paralysis, Cold sensitivity, Peripheral circulatory disorder, Decreased gastrointestinal function (stomach heaviness, intestinal gas buildup, etc.), Mild hypertension, Impaired glucose tolerance (diabetes), Mild hypercholesterolemia, Mild asthma or emphysema, Hemorrhoid pain, Symptoms of stress (sleep disorders, depression, etc.), Post-illness recovery period, Fatigue recovery, Health Promotion
, 【Spring quality indications】, Autonomic instability, Insomnia, Depressed state
Reservation
Reservations are exclusive form
or
We can help you by phone.
Tel. +81-241-76-3115
Reception Hours : 9:00 a.m. - 9:00 p.m.