Fujikawaguchiko Town No. 2 and No. 3 Mixed Spring

Analysis Unverified
富士河口湖町第2号源泉及び第3号源泉混合泉
Kawaguchiko Gypsum Warmth Spring

Fuji-Kawaguchiko Onsen grew in the Heisei era as the town drilled wells and piped water to lakeside inns. This blend of springs No. 2 and No. 3 looks gentle—clear, odorless and tasteless—yet carries 672.6 mg/kg sulfate and 287.1 mg/kg calcium, a gypsum-type water with 396.9 mg/kg chloride, suited to those who want a slow, warming soak facing Mount Fuji.

AI Generated
This source matches 2 spring types· Tap to switch
硫塩
SPRING TYPE
Sulfate Spring

Said to carry moisture to the skin and form a protective film, leaving the skin feeling soft after bathing. Indications include cuts and grazes for bathing, and biliary tract disease and constipation for drinking.

See features & indications▾
Bathing indications
Cuts and grazesPeripheral circulatory failurePoor circulationDepressionXeroderma
Drinking indications
Biliary tract diseaseDyslipidemia (high cholesterol)Constipation

※ Only at facilities permitted to serve drinking water. 200–500 mL/day recommended.

Definition :Primary anion: sulfate ion.
Source: 環境省「あんしん・あんぜんな温泉利用のいろは」(監修:日本温泉気候物理医学会) ↗Read full article
PH VALUE
7.2
Neutral
Acidic ← 07 Neutral14 → Alkaline
Upper bound of neutral (pH 7.5). Approaching mildly alkaline, the boundary where skin starts to feel smooth.
TEMPERATURE
27.3℃
Low Temperature Spring
Below body temperature; bathing will gradually cool the body.
KEY MINERALS

The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).

Metaboric acidSee detail
9.3 mg/kg

A trace component with gentle antibacterial and anti-inflammatory action.

Metasilicic acidSee detail
40.3 mg/kg

A natural moisturizer that leaves a hydrated feel on the skin.

Bicarbonate ionSee detail
191 mg/kg

Softens dead skin cells for a silky bathing feel.

Sulfate ionSee detail
673 mg/kg

Soothes the skin and gently improves circulation.

Iodide ionSee detail
0.6 mg/kg

Trace component with antibacterial and anti-inflammatory action.

What to expect in the bath
  • Chloride (salt)397 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.
  • Sulfate673 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.

Effects are general descriptions based on the Ministry of the Environment’s indications by spring type, not a guarantee.

CHARACTER · COMPOSITION PROFILE
1234StimulationBactericidalSkin BeautyHeat RetentionRelaxation

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.

USAGE
HeatedYes
DilutedYes
RecycledYes
FilteredYes
DisinfectedYes
AdditivesNo
▸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.

SENSORY TEST
Color
無色澄明
Smell
無臭
Taste
無味
EFFECTS
Spring-specific indications (bathing)
Cuts and grazesPeripheral circulatory failurePoor circulationDepressionXeroderma
General indications (bathing)
High blood pressure (mild)Rheumatoid arthritisAutonomic instabilityInsomniaChronic pain or stiffness in muscles and jointsMuscle stiffness due to motor paralysisGastrointestinal dysfunction
Contraindications
Acute illness (especially with fever)Active tuberculosisMalignant tumorsSevere heart diseaseRespiratory failureRenal failureBleeding disordersSevere anemiaAny actively progressing illnessPregnancy (especially early and late stages)
BATHING TIPS
AI Generated

The source emerges at only 27.3°C, so the baths are heated. The neutral water is gentle on skin—soak about 10 minutes at around 40°C, rest, and repeat. With its chloride content, let the sweat settle before dressing.

EFFECT STORY
AI Generated

Sulfate (672.6 mg/kg) and calcium (287.1 mg/kg) form a gypsum-type profile that may help relieve pain in stiff muscles, while 396.9 mg/kg of chloride leaves a light film on the skin for restorative warmth that lingers after the bath.

CAUTIONS
AI Generated

The chloride content keeps the body warm after bathing—avoid overly long soaks and drink water regularly to prevent dizziness.

※ See the analysis data below for detailed contraindications

ANALYSIS DATAView all analysis fields ▼

Source Info

Source name
Fujikawaguchiko Town No. 2 and No. 3 Mixed Spring
Spring type
Calcium-Sodium Sulfate and Chloride Hot Spring
Source temperature
27.3℃
pH
7.2
Flow type
動力揚湯
Osmotic pressure
低張性

Analysis Document

Analysis date
2019-07-18
Analyst organization
一般社団法人山梨県食品衛生協会
Registration No.
16山梨み自第4号

Cations

Hydrogen ion H⁺
0.00 mg/kg
Lithium ion Li⁺
0.00 mg/kg
Sodium ion Na⁺
276 mg/kg
Potassium ion K⁺
1.0 mg/kg
Ammonium ion NH₄⁺
0.00 mg/kg
Magnesium ion Mg²⁺
15.1 mg/kg
Calcium ion Ca²⁺
287 mg/kg
Aluminum ion Al³⁺
0.00 mg/kg
Manganese ion Mn²⁺
0.00 mg/kg
Iron(II) ion Fe²⁺
0.20 mg/kg
Iron(III) ion Fe³⁺
0.00 mg/kg
Lead ion Pb²⁺
0.00 mg/kg
Strontium ion Sr²⁺
0.40 mg/kg
Barium ion Ba²⁺
0.00 mg/kg
Copper ion Cu²⁺
0.02 mg/kg
Cadmium ion Cd²⁺
< 0.0003 mg/kg
Total cations
580 mg/kg

Anions

Fluoride ion F⁻
0.40 mg/kg
Chloride ion Cl⁻
397 mg/kg
Hydroxide ion OH⁻
0.00 mg/kg
Hydrogen sulfide ion HS⁻
0.00 mg/kg
Thiosulfate ion S₂O₃²⁻
1.0 mg/kg
Sulfate ion SO₄²⁻
673 mg/kg
Bicarbonate ion HCO₃⁻
191 mg/kg
Carbonate ion CO₃²⁻
0.00 mg/kg
Bromide ion Br⁻
0.90 mg/kg
Iodide ion I⁻
0.60 mg/kg
Hydrogen sulfate HSO₄⁻
0.00 mg/kg
Hydrogen phosphate HPO₄²⁻
0.00 mg/kg
Arsenite ion AsO₂⁻
0.00 mg/kg
Sulfide ion S²⁻
0.00 mg/kg
Hydrogen metasilicate HSiO₃⁻
0.00 mg/kg
Metaborate ion BO₂⁻
0.00 mg/kg
Total anions
1263 mg/kg

Undissociated Components

Phosphoric acid H₃PO₄
0.00 mg/kg
Arsenious acid HAsO₂
0.00 mg/kg
Metasilicic acid H₂SiO₃
40.3 mg/kg
Metaboric acid HBO₂
9.3 mg/kg
Total undissociated
49.6 mg/kg

Dissolved Gas

Free carbon dioxide CO₂
13.2 mg/kg
Free hydrogen sulfide H₂S
0.00 mg/kg
Total dissolved gas
13.2 mg/kg

Totals

Total dissolved substances
1893 mg/kg
Component total
1906 mg/kg
Evaporation residue
1769 mg/kg

Usage

Heating
Yes
Dilution
Yes
Recycle / Filter
Recycled / Filtered
Additives
No
Disinfection
Yes

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
FACILITY INFO
Official site
Private bath (Kashikiri)
Available
Room with private open-air bath
Available
About tattoos and onsen
Travelers with tattoos can still bathe comfortably in a private bath (Kashikiri) or a room with a private open-air bath.
Transit
富士急行線河口湖駅から徒歩約10分(駅から無料送迎あり・到着時に電話)。中央自動車道河口湖ICから車で約10分
This information may change without notice. Please contact the facility directly for accurate details.
How Long to Stay (Toji)
Start with 2 nights / 3 days

Japan’s Ministry of the Environment notes that even a short stay refreshes you. For a full therapeutic cure, around 2–3 weeks is the guideline.

More on toji length
Stay at this hotel
PR

Fuji Kawaguchiko Onsen Konansou

From¥26,400/ person / night (tax incl.)
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Approx. lowest rate (varies by date & guests)

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✨ The descriptions, catch phrases, and translations on this page are generated by AI (Claude). pH, temperature, and component values are OCR-extracted from the official analysis report. Learn more