Tōgō Onsen No. 2 Gensen and Suimeisō Gensen (mixed)
Analysis UnverifiedTōgō Onsen grew up on the shore of Lake Tōgō, where hot water is said to rise even from the lakebed, and together with Hawai Onsen across the water it forms a lakeside spa district. The blend of two sources emerges at 47.9°C, clear yet rich in both salt and sulfate, pairing a skin-wrapping warmth with a refreshing finish. It suits travelers who want to sink slowly into the water while the lake glows at sunset.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
A rare radioactive spring where trace radiation absorbed via inhalation and skin is expected to stimulate cells (the "hormesis effect").
A trace component with gentle antibacterial and anti-inflammatory action.
- Chloride (salt)370 mg/kg
- Feel
- Tastes salty; the warmth lasts after you get out.
- Said to
- Salt is said to form a film on the skin that keeps in heat and moisture. Bathing indications include cuts, poor circulation and dry skin.
- Note
- May sting cuts. Strong salty water can tire you—avoid long soaks.
- Sulfate230 mg/kg
- Feel
- Your skin feels moist; the water may taste slightly bitter.
- Said to
- Said to retain heat well and help heal cuts. Bathing indications include cuts and dry skin.
- Note
- It warms you well—do not stay in too long.
- Metasilicic acid68.2 mg/kg
- Feel
- Your skin may feel smoother.
- Said to
- 50 mg/kg or more is said to mark a “skin-beautifying spring”; it is also used in skincare.
- Note
- The “skin-beautifying” label is a common rule of thumb, not a legal standard.
- Source temperature47.9℃
- Feel
- The source is 42°C or hotter; the bath may be on the hot side.
- Said to
- Heat is said to boost circulation and warm the body.
- Note
- Older people and those with high blood pressure or heart conditions should avoid baths of 42°C or more. Keep soaks short.
Effects are general descriptions based on the Ministry of the Environment’s indications by spring type, not a guarantee.
Scores are calculated from mineral analysis data based on the Mineral Spring Analysis Guidelines (Ministry of Environment, Japan). They are unrelated to facility atmosphere or service quality.
▸Note
The temperature, pH and component values shown here are based on the hot spring analysis (source). Actual values in the bath may differ depending on heating, dilution, recycling and filtration. Please check current usage status at the facility.
Rich in chloride and sulfate, this water warms you quickly and keeps you warm afterward, so soak for about 10 minutes with breaks. It feels gentle at pH 7.9; skip a heavy rinse afterward to keep the warmth longer.
With 370.4 mg/kg of chloride forming a thin salt film on the skin, this spring is traditionally associated with restorative warmth after bathing. Its 230.3 mg/kg of sulfate and 70.1 mg/kg of calcium give it the character of a sulfate spring long valued for stiff joints and muscles, and a soak in the 47.9°C water may help relieve pain.
This water warms you quickly, so watch for light-headedness and drink water before and after bathing. It may sting cuts; keep baths short if you feel unwell.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Tōgō Onsen No. 2 Gensen and Suimeisō Gensen (mixed)
- Spring type
- Sodium-Calcium Chloride and Sulfate Hot Spring
- Source temperature
- 47.9℃
- pH
- 7.9
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2024-10-16
- Analyst organization
- 公益財団法人鳥取県保健事業団
- Registration No.
- 鳥取県環10第1号
Cations
- Sodium ion Na⁺
- 300 mg/kg
- Potassium ion K⁺
- 7.6 mg/kg
- Magnesium ion Mg²⁺
- 0.90 mg/kg
- Calcium ion Ca²⁺
- 70.1 mg/kg
- Aluminum ion Al³⁺
- 0.00 mg/kg
- Manganese ion Mn²⁺
- 0.10 mg/kg
- Iron(II) ion Fe²⁺
- 0.10 mg/kg
- Lead ion Pb²⁺
- < 0.001 mg/kg
- Copper ion Cu²⁺
- < 0.1 mg/kg
- Cadmium ion Cd²⁺
- < 0.0003 mg/kg
- Total cations
- 379 mg/kg
Anions
- Fluoride ion F⁻
- 7.3 mg/kg
- Chloride ion Cl⁻
- 370 mg/kg
- Hydrogen sulfide ion HS⁻
- 0.00 mg/kg
- Sulfate ion SO₄²⁻
- 230 mg/kg
- Bicarbonate ion HCO₃⁻
- 85.5 mg/kg
- Carbonate ion CO₃²⁻
- 0.00 mg/kg
- Bromide ion Br⁻
- 1.0 mg/kg
- Total anions
- 695 mg/kg
Undissociated Components
- Arsenious acid HAsO₂
- 0.10 mg/kg
- Metasilicic acid H₂SiO₃
- 68.2 mg/kg
- Metaboric acid HBO₂
- 3.0 mg/kg
- Total undissociated
- 71.3 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 2.6 mg/kg
- Free hydrogen sulfide H₂S
- 0.00 mg/kg
- Total dissolved gas
- 2.6 mg/kg
Trace Components
- Radon Rn
- 8.5 Bq/kg
Totals
- Total dissolved substances
- 1145 mg/kg
- Component total
- 1148 mg/kg
- Evaporation residue
- 1151 mg/kg
Usage
- Usage status
- Unknown
Indications & Contraindications
- Bathing indications
- Cuts and grazes, Peripheral circulatory failure, Poor circulation, Depression, Xeroderma
- General indications
- High blood pressure (mild), Rheumatoid arthritis, Autonomic instability, Insomnia, Chronic pain or stiffness in muscles and joints, Muscle stiffness due to motor paralysis, Gastrointestinal dysfunction
- Contraindications
- Acute illness (especially with fever), Active tuberculosis, Malignant tumors, Severe heart disease, Respiratory failure, Renal failure, Bleeding disorders, Severe anemia, Any actively progressing illness, Pregnancy (especially early and late stages)
Drinking
- Drinkability
- Not drinkable



