Choza 2-go

Analysis Unverified
長座2号
Okuhida's Smooth Skin Hot Spring

This blessed spring gushes from 250 meters beneath the natural splendor of Oku-Hida. The water, a blend of abundant bicarbonate ions and metasilicic acid, feels silky smooth on the skin and has long been cherished as a 'beauty spring.' After bathing, you'll notice your skin feeling moist and smooth, with a warmth that lingers from your core. This spring is a gentle companion for those seeking a moment of peace to unwind both mind and body from the hustle and bustle of daily life.

AI Generated
This source matches 2 spring types· Tap to switch
SPRING TYPE
Bicarbonate Spring
aka "美人の湯"

Sodium bicarbonate cleanses the skin of old keratin and excess sebum, leaving skin soft and smooth. Expect beautiful skin after bathing.

See features & indications
Bathing indications
Cuts and grazesPeripheral circulatory failurePoor circulationXeroderma
Drinking indications
Gastroduodenal ulcersReflux esophagitisImpaired glucose tolerance (diabetes)Hyperuricemia (gout)

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

Definition :Primary anion: bicarbonate 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
8.0
Mildly Alkaline
Acidic ← 07 Neutral14 → Alkaline
Mildly alkaline (pH 7.5-8.5). Cleansing effects begin to appear, the entrance to "beauty spring" with smooth skin feel.
TEMPERATURE
63.1
Very Hot Spring
Very hot. Cannot be bathed in without significant dilution.
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.).

Metasilicic acidSee detail
149 mg/kg

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

Bicarbonate ionSee detail
444 mg/kg

Softens dead skin cells for a silky bathing feel.

Metaboric acidSee detail
5.2 mg/kg

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

Fluoride ionSee detail
1.5 mg/kg

A trace antibacterial component that keeps skin clean.

Free carbon dioxideSee detail
31.7 mg/kg

Absorbed through the skin to gently promote peripheral circulation.

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
Free-Flowing Onsen
Pure spring water — no dilution, no recirculation
HeatedNo
DilutedNo
RecycledNo
FilteredNo
DisinfectedNo
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
Colorless and transparent
Smell
Slight sulfur odor
Taste
Tasteless
EFFECTS
Spring-specific indications (bathing)
Cuts and grazesPeripheral circulatory failurePoor circulationXerodermaDepression
General indications (bathing)
High blood pressure (mild)Rheumatoid arthritisAutonomic instabilityInsomniaChronic pain or stiffness in muscles and jointsMuscle stiffness due to motor paralysisGastrointestinal dysfunction
Drinking indications
Gastroduodenal ulcersReflux esophagitisImpaired glucose tolerance (diabetes)Hyperuricemia (gout)Atrophic gastritisConstipation
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 is a hot 63.1°C, so avoid long soaks and try split bathing with breaks. The alkaline water softens the skin's outer layer; moisturizing after your bath will enhance the silky-smooth feeling.

EFFECT STORY
AI Generated

With an alkaline pH of 8.0 and a high content of 148.8 mg/kg of metasilicic acid, known as a beauty ingredient, this spring is perfect for those seeking smoother skin. The abundant bicarbonate ions help cleanse pores and remove dead skin cells, promising a rejuvenated, 'silky skin' feel post-bath. Experience a form of balneotherapy that refreshes both mind and body with the natural power of the onsen.

CAUTIONS
AI Generated

Due to the spring's quality, the bottom of the tub may be slippery, so please watch your step. Drinking is permitted, but follow professional guidance.

※ See the analysis data below for detailed contraindications

ANALYSIS DATAView all analysis fields ▼

Source Info

Source name
Choza 2-go
Spring type
Sodium Chloride and Bicarbonate Spring
Source temperature
63.1℃
pH
8
Flow rate
760 L/min
Flow type
Pumped
Osmotic pressure
Hypotonic

Analysis Document

Analysis date
2011-05-04
Analyst organization
株式会社神岡衛生社
Registration No.
岐阜県第3号

Cations

Sodium ion Na⁺
111 mg/kg
Potassium ion K⁺
12.0 mg/kg
Magnesium ion Mg²⁺
5.3 mg/kg
Calcium ion Ca²⁺
51.4 mg/kg
Aluminum ion Al³⁺
0.04 mg/kg
Manganese ion Mn²⁺
0.10 mg/kg
Lead ion Pb²⁺
0.01 mg/kg
Copper ion Cu²⁺
0.02 mg/kg
Cadmium ion Cd²⁺
0.01 mg/kg
Total cations
0.18 mg/kg

Anions

Fluoride ion F⁻
1.5 mg/kg
Chloride ion Cl⁻
15.6 mg/kg
Hydrogen sulfide ion HS⁻
0.20 mg/kg
Sulfate ion SO₄²⁻
16.0 mg/kg
Bicarbonate ion HCO₃⁻
444 mg/kg
Total anions
0.48 mg/kg

Undissociated Components

Metasilicic acid H₂SiO₃
149 mg/kg
Metaboric acid HBO₂
5.2 mg/kg
Total undissociated
0.15 mg/kg

Dissolved Gas

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

Totals

Total dissolved substances
0.81 mg/kg
Component total
0.84 mg/kg
Evaporation residue
0.55 mg/kg

Usage

Heating
No
Dilution
No
Recycle / Filter
No
Additives
No
Disinfection
No

Indications & Contraindications

Bathing indications
Cuts and grazes, Peripheral circulatory failure, Poor circulation, Xeroderma, Depression
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
Drinking indications
Gastroduodenal ulcers, Reflux esophagitis, Impaired glucose tolerance (diabetes), Hyperuricemia (gout), Atrophic gastritis, Constipation
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
Drinkable
Drinking notes
肝臓病、慢性消化器病、便秘に効果が期待される。
FACILITY INFO
AI draft (unverified)
Official site
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.
Transit
From JR Takayama Station (JR Takayama Eki), take the Nohi Bus (Nohi Bus) for approx. 70 minutes, then a 1-minute walk from Fukuchi Yurimizaka Bus Stop (Fukuchi Yurimizaka Bus Tei). Shuttle service is available to Fukuchi Onsen-guchi Bus Stop (Fukuchi Onsen-guchi Bus Tei) (advance reservation required).
Parking
Available (Free). Accommodates 40 standard cars. 2-minute walk from the main building. During winter (late November to late April), please prepare snow chains or studless tires due to snow accumulation.
Facilities
Private BathOpen-air BathIndoor BathPublic BathIrori (Traditional Sunken Hearth)Souvenir ShopFree Wi-Fi
House rules
There is about a 100m walk from the guest rooms to the public bath/open-air bath. Please refrain from using mobile phones outside of your room.
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
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