New Heartpia Onsen
Analysis VerifiedThe New Heartopia Onsen, located in Nagashima-cho, Kuwana City, Mie Prefecture, an area famous for Nagashima Resort, is sourced from deep underground through drilling and pump-lifting. Its soft, saline waters create a delicate veil on the skin, gently warming the body from its core. The restorative warmth lingers long after bathing, offering deep relaxation for both mind and body. This spring provides a soothing embrace for those seeking profound tranquility after a day of enjoyment in this vibrant leisure destination.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
- Chloride (salt)4025 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.
- Metasilicic acid71.7 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 temperature49℃
- 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.
This 49.0°C high-temperature chloride spring is known as a "warming bath" that prevents post-bath chills. A salt veil forms on the skin, retaining heat. Avoid long soaks; start with short dips to acclimate. A light rinse or a full shower afterward is recommended for sensitive skin.
With high concentrations of sodium (2240 mg/kg) and chloride (4025 mg/kg), this is a classic "warming spring." The salt adheres to the skin, preventing sweat from evaporating and warming you from the core. At 49.0°C, it's especially recommended for those with poor circulation or to warm up after a cold day of winter activities.
Bathing is contraindicated during active illness, extreme physical weakness, or for those with severe heart or kidney disease. Avoid bathing immediately after meals or after consuming alcohol.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- New Heartpia Onsen
- Spring type
- ナトリウム－塩化物温泉
- Old spring type name
- 純食塩泉
- Source temperature
- 49℃
- pH
- 7.4
- Flow rate
- 500 L/min
- Flow type
- 掘削・動力揚湯
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2016-12-02
- Analyst organization
- 日本水処理工業株式会社
- Registration No.
- 大阪府第5号
Cations
- Sodium ion Na⁺
- 2240 mg/kg
- Potassium ion K⁺
- 23.0 mg/kg
- Ammonium ion NH₄⁺
- 4.3 mg/kg
- Magnesium ion Mg²⁺
- 50.1 mg/kg
- Calcium ion Ca²⁺
- 444 mg/kg
- Manganese ion Mn²⁺
- 2.3 mg/kg
- Iron(II) ion Fe²⁺
- 4.5 mg/kg
- Zinc ion Zn²⁺
- 0.02 mg/kg
- Lead ion Pb²⁺
- 0.00 mg/kg
- Strontium ion Sr²⁺
- 5.9 mg/kg
- Barium ion Ba²⁺
- 6.6 mg/kg
- Copper ion Cu²⁺
- 0.01 mg/kg
- Cadmium ion Cd²⁺
- 0.00 mg/kg
- Total cations
- 2781 mg/kg
Anions
- Fluoride ion F⁻
- 0.30 mg/kg
- Chloride ion Cl⁻
- 4025 mg/kg
- Bicarbonate ion HCO₃⁻
- 240 mg/kg
- Bromide ion Br⁻
- 0.70 mg/kg
- Total anions
- 4266 mg/kg
Undissociated Components
- Metasilicic acid H₂SiO₃
- 71.7 mg/kg
- Metaboric acid HBO₂
- 2.4 mg/kg
- Total undissociated
- 74.1 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 16.4 mg/kg
- Total dissolved gas
- 16.4 mg/kg
Trace Components
- Radon Rn
- 3.1 Bq/kg
Totals
- Total dissolved substances
- 7121 mg/kg
- Component total
- 7137 mg/kg
- Evaporation residue
- 7619 mg/kg
Usage
- Heating
- Yes
- Dilution
- No
- 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
