New Heartpia Onsen

Analysis Verified
ニューハートピア温泉
The Soothing Saline Spring of Nagashima

The 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.

AI Generated
SPRING TYPE
Chloride Spring
aka "熱の湯"

Salt content forms a protective barrier on the skin and prevents moisture and heat from escaping the body even after bathing. Boosts heat retention and has moisturizing effects.

See features & indications
Bathing indications
Cuts and grazesPeripheral circulatory failurePoor circulationDepressionXeroderma
Drinking indications
Atrophic gastritisConstipation

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

Definition :Primary anion: chloride 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
7.4
Neutral
Acidic ← 07 Neutral14 → Alkaline
Upper bound of neutral (pH 7.5). Approaching mildly alkaline, the boundary where skin starts to feel smooth.
TEMPERATURE
49.0
Hot Spring
Quite hot. Often diluted with water for a comfortable bathing temperature.
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.).

Chloride ionSee detail
4025 mg/kg

Boosts after-bath warmth and warms the body from the core.

Sodium ionSee detail
2240 mg/kg

Gentle warming effect that helps you stay warm after bathing.

Metasilicic acidSee detail
71.7 mg/kg

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

Bicarbonate ionSee detail
240 mg/kg

Softens dead skin cells for a silky bathing feel.

Calcium ionSee detail
444 mg/kg

Gentle astringent action that conditions the skin.

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
Usage status is unknownInformation from facility postings or official sites has not been confirmed. Please check with staff on site.
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
淡褐色澄明
Smell
僅かに硫化水素臭有り
Taste
塩味
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

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.

EFFECT STORY
AI Generated

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.

CAUTIONS
AI Generated

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
2.8 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
4.3 mg/kg

Undissociated Components

Metasilicic acid H₂SiO₃
71.7 mg/kg
Metaboric acid HBO₂
2.4 mg/kg
Total undissociated
0.07 mg/kg

Dissolved Gas

Free carbon dioxide CO₂
16.4 mg/kg
Total dissolved gas
0.02 mg/kg

Trace Components

Radon Rn
3.1 Bq/kg

Totals

Total dissolved substances
7.1 mg/kg
Component total
7.1 mg/kg
Evaporation residue
7.6 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
FACILITY INFO
AI draft (unverified)
Official site
Tattoo
No tattoos
Private bath (Kashikiri)
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.
Hours
Weekdays: 11:0021:00
Weekends & holidays: 11:0021:00
Last admission for day-use hot springs is 8:30 PM. Overnight guests can also use the facilities from 11:00 AM to 11:00 PM and 5:00 AM to 8:30 AM.
Transit
Approximately 10 minutes by taxi from Kintetsu Nagashima Station (Kintetsu Nagashima Eki) (free shuttle bus available). Approximately 5 minutes by car from Tomeihan Expressway Nagashima IC (Nagashima Interchange).
Parking
Free parking available. Tour buses and large vehicles can also park. Advance notice is recommended due to limited parking spaces.
Day use fee
¥800Adult fee. Children are 400 yen.
Facilities
Natural Hot Spring Public BathOpen-air BathSaunaCold BathPrivate Rental BathRestaurantGround GolfTennis Court
House rules
Guests with tattoos (including temporary tattoos), those who are heavily intoxicated, individuals associated with organized crime, and guests with pets are strictly prohibited from entering.
Sources
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
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New Heartpia Onsen

From¥7,200/ 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