Bettei Senjuan
Luxurious onsen ryokan with open-air baths in all guest rooms with free-flowing hot spring water

BETTEI SENJUAN

別邸 仙寿庵 日本語ページ

  Calcium Sodium-Sulfate Chloride Springs

pH
8.4

 
(低張性 弱アルカリ性 温泉)
(Hypotonic, Weak Alkaline, Hot Springs)
旧泉質名:含食塩-石膏泉

Ideal for people like this

  • Who want silky smooth skin
  • Who have dry skin
  • Who are feeling stressed
  • Who have sensitivity to cold
Address
614, Tanigawa, Minakami-machi, Tone-gun, Gunma 379-1619, JAPAN

Google MAP

Phone
+81-(0)278-20-4141
When inquiring, please tell them you visited "Onsen Search.com".
Official Website

Official Website

Kashikiri-onsen.com

Travel Journal

Hot Spring Power Chart (5-point scale)

Hydrogen Ion Concentration (pH)

Hydrogen Ion Concentration (pH)
Comment
Hot spring for beauty that prevents the formation of wrinkles

Hot spring Specification

※This is an easy-to-understand expression based on the indications for each type of spring in the "Standard Methods of Analysis for Mineral Springs" revised in July 2014 by the Ministry of the Environment.

①Mental recovery ②Insomnia ③Promote blood circulation ④Sensitivity to cold ⑤Dry skin
⑥Cuts ⑦Skin diseases ⑧Hypertension (mild) ⑨Heartburn (drinking) ⑩Gastrointestinal disorders (drinking)
⑪Constipation (drinking) ⑫Lifestyle-related disease ⑬Diabetes ⑭Gout ⑮Countermeasures against metabolic syndrome
⑯Biliary system anxiety ⑰Anaemia ⑱Arthritis rheumatica ⑲Spinal pain ⑳Improved immunity
㉑Muscle pain・Neuralgia ㉒Mild asthma ㉓Hemorrhoidal pain ㉔Recovery from an illness ㉕Recovery from fatigue
  • ※Note①・・・Indications for each spring include autonomic instability and depression.(Simple springs・Chloride springs・Carbon dioxide springs
  • ※Note③・・・Indications for each spring include peripheral circulatory disturbance(Chloride springs・Carbonate springs・Carbon dioxide springs・Hydrogen sulfide type Sulfur spring
  • ※Note④・・・Indications for each spring include sensitivity to cold(Chloride springs・Carbonate springs・Sulfur springs・Carbon dioxide springs)and Iron containing springs
  • ※Note⑦・・・Indications for each spring include xeroderma, atopic dermatitis, plaque psoriasis, epidermoid suppuration, chronic eczema(Chloride springs・Carbonate springs・Sulfate spring・Acid springs・Sulfur springs
  • ※Note⑨・・・Indications for drinking each spring include reflux esophagitis(Carbonate springs
  • ※Note⑩・・・Indications for drinking each spring include atrophic gastritis, gastroduodenal ulcerations(Chloride springs・Carbonate springs
  • ※Note⑪・・・For drinking, Chloride springs and Sulfate spring
  • ※Note⑫・・・Indications for each spring include hypercholesterolemia, diabetes, gout(for bathing, Acid springsRadioactive springs/for drinking, Carbonate springs・Iodine containing springs・Sulfur springs
  • ※Note⑮・・・Indications for drinking each spring include hypercholesterolemia(Sulfate spring・Iodine containing springs・Sulfur springs
  • ※Note⑱⑲・・・Indications for each spring include rheumatoid arthritis, ankylosing spondylitis(Radioactive springs
  • ※Note⑳・・・Radioactive springs
  • ※Note㉑㉔・・Simple springs is suitable for rehabilitation due to its low level of stimulation, and is also called "hot spring for neuralgia" and "hot spring for stroke", although these are not listed as indications by spring quality.
Applicable to indications by spring quality Applicable to general indications

7 Elements of Hot Springs for Beautiful Skin

Total3Points ※The number of points represents the quality of the "Hot spring for beauty".

Skin cleansing effect Skin reviving effect Skin whitening effect
Carbonate Springs Sulfate Springs Sulfur Springs
Skin smoothing effect Skin Coating and moisturizing effect Skin moisturizing effect Cleaning effect
(Weak) Alkaline Springs Chloride Springs Metasilicic acid(over 100mg/kg) Metaboric acid(over 10mg/kg)
  • ※The "Four Best Beauty Springs" are said to be "Carbonate spring", "Sulfate spring", "Sulfur spring", and "(Weak) Alkaline simple hot spring".
  • ※The "Chloride spring" coats the skin with a salt pack, keeping it warm and moisturized at the same time. It is also called "Hot spring for finishing touch" to be taken after the "Hot spring for beauty" in which exfoliation has been removed.
  • ※Hot springs containing 100 mg/kg or more of metasilicicic acid have an excellent moisturizing effect and is said to be "Hot spring for beauty".
  • ※Hot springs containing 10 mg/kg or more of metaboric acid have a cleansing effect, is used in some eye drops, and is said to be effective in treating acne.

Water texture while bathing(5-point evaluation)

Water texture while bathing

Smoothly Water texture while bathing Water texture while bathing Water texture while bathing Water texture while bathing Water texture while bathing Mushy Water texture while bathing
Powdery Water texture while bathing Water texture while bathing Chewy Water texture while bathing
Fizzy Tingling
Bath nameIndoor bath in a public bathhouse

Skin feeling after bathing(5-point evaluation)

Skin feeling after bathing

Silky Skin feeling after bathing Skin feeling after bathing Skin feeling after bathing Skin feeling after bathing Skin feeling after bathing Dryness
Powdery Skin feeling after bathing Skin feeling after bathing Sticky Skin feeling after bathing Skin feeling after bathing
Moistly Skin feeling after bathing Skin feeling after bathing Skin feeling after bathing Warmly Skin feeling after bathing Skin feeling after bathing Skin feeling after bathing Skin feeling after bathing
Bath nameIndoor bath in a public bathhouse

View from the open-air bath (5-point evaluation)

View from the open-air bath

ViewView Views of the Tanigawa River below, surrounded by forests
BathBath Open-air bath "Hotaru-no-Yu" and "Suzumushi-no-Yu"
View from the open-air bath View from the open-air bath View from the open-air bath View from the open-air bath Point 4

Hot Spring Source Usage

Water added
No
Heated
No
Disin fected
No
Circulated
No
Bath additive
No
※Only in winter, the temperature may be heated to keep it at a suitable temperature for bathing.
Percentage
of hot spring source
100%
Replacement frequency of hot spring water Once a day for guest room open-air baths / once every 3 days for public bath
Yield
of hot spring water
Three private sources of spring water by power pumping are mixed and used
Distance from the source
to the bathtub
Kuraoki-no-Yu : 500m
Senju-no-Yu : 130m
Kajika-no-Yu : 60m
How hot spring water is drawn Drawn by a pipe
How water temperature is adjusted Adjust the volume of hot water
Drinking Spring None
"Gensen-Kakenagashi" Bath Public bath for men and women x 2, Open-air Bath x 2, Guest room Open-air Bath x 18

Hot Spring Composition TableHot Spring Analysis Report

Spring Quality Calcium Sodium-Sulfate Chloride Springs(Hypotonic, Weak Alkaline, Hot Springs)
旧泉質名:含食塩-石膏泉
Color of hot spring Clear and colorlessClear and colorless
Scent of hot spring Odorless
Dissolved substances 1,293mg/kg(Sum of components (1) + (2) + (3), excluding gaseous substances)
Temperature of spring 41.4℃
pH 8.4 (Weak Alkaline)
Yield About 360 liters per minute(Total value of three private sources)
Kuraoki-no-Yu - 180L/minute, 35°C
Senju-no-Yu - 120L/minute, 43°C
Kajika-no-Yu - 60L/minute, 50°C

Amount of hot spring use per person (yield / bath capacity):About 7.2 liters/person(maximum capacity of 50 people)
※The requirements to satisfy kakenagashi (flowing directly from the source) and amount of hot spring required for bathtub management are more than 1 liter/minute per person who enters the bathhouse (cited from "Gensen-Yuyado").

Hot Spring Composition (Amount contained in 1 kg of spring)

Cation Graphs
①Cation mg mval mval%
Calcium Ion (Ca2+) 259.00 12.90 68.82
Sodium Ion (Na+) 130.00 5.65 30.23
Potassium Ion (K+) 3.50 0.09 0.48
Magnesium Ion (Mg2+) 0.74 0.06 0.32
Ferrous Ion (Fe2+) 0.36 0.01 0.07
Manganese Ion (Mh2+) 0.21 0.01 0.04
Aluminum Ion (Al3+) 0.06 0.01 0.04
Cations Total(1) 394 18.7 100.00
Anion Graphs
②Anion mg mval mval%
Sulfate Ion (SO42-) 682 14.2 75.69
Chloride Ion (Cl-) 150 4.24 22.62
Bicarbonate Ion (HCO3-) 8.5 0.14 0.74
Carbonate Ion (CO32-) 3.0 0.1 0.53
Fluoride Ion (F-) 1.5 0.08 0.42
       
       
Anion Total(2) 845 18.8 100.00
③Undissociated Components mg mmol
Metasilicic Acid (H2SiO3) 43.6 0.56
Metaboric Acid (HBO2) 10.6 0.24
Undissociated Components Total(3) 54.2 0.80
④Dissolved Gas Components mg mmol
Free Carbon Dioxide (CO2) 0.0 0.00
Free Hydrogen Sulfide (H2S) 0.0 0.00
Dissolved Gas Components Total(4) 0.0 0.00
Other Trace Components
Total Arsenic 0.017mg/kg, Total mercury, Lead Ion, and Copper Ion not detected

are the ingredients related to the "spring quality" and the ingredients that qualify conditions for "hot spring" and "therapeutic hot spring".


Indications by Spring Quality for Bathing (Revised on July 1, 2014)

Cuts, Peripheral circulatory disturbance, Sensitivity to cold, Depression, Dry skin

General Indications for Bathing (Revised on July 1, 2014)

Chronic pain or stiffness of muscles or joints (chronic phase of rheumatoid arthritis, osteoarthritis, lower back pain, neuralgia, frozen shoulder, bruises, sprains, etc.),
muscle stiffness by motor paralysis, sensitivity to cold, peripheral circulatory disturbance,
gastrointestinal hypofunction (slow digestion, intestinal gas formation, etc.),
mild hypertension, impaired glucose tolerance (diabetes), mild hypercholesterolemia,
mild asthma or emphysema, pains of hemorrhoidals, autonomic instability,
various symptoms from stress (sleep disorders, depression, etc.),
restorative phase from illness, recovery from fatigue, health promotions

Contraindications by Spring Quality for Bathing (Revised on July 1, 2014)

Same as General Contraindications

General Contraindications for Bathing (Revised on July 1, 2014)

Active stage of diseases (especially when fever is accompanied), active tuberculosis,
advanced malignant tumor, or the case of significant debility involving severe anemia,
severe cardiac or lung diseases involving suffocation feelings with a little movement,
severe kidney disease involving edema, gastrointestinal bleeding,
when there is visible bleeding, acute exacerbation stage of chronic diseases, etc.

Indications by Spring Quality for Drinking

Not drinkable ※Not submitted an application for drinking to the health department

Date of Analysis (The above hot spring composition table is cited from the survey data of the following institution)

May 26, 2015 (Gunma Pharmaceutical Association)

  • ※Indications and Contraindications for hot springs are in accordance with "Standard Methods of Analysis for Mineral Springs" revised on July 1, 2014.
  • ※Data was provided by the ryokan.

20 qualifications for "hot spring" and 8 qualifications for "therapeutic hot spring"

Conditions/Components (contained amount in 1kg)
※If even one of the conditions is cleared, it is a
"hot spring" or "therapeutic hot spring"
A【Hot Springs Act】
Conditions of the "hot spring"
B【The Guideline for analysis of Kosen】
Conditions of the "therapeutic hot spring"
1 Temperature (when collected from source) 25℃ or more
2 Dissolved substances (excluding gaseous) Total amount 1,000mg or more
3 Free carbon dioxide (CO2) 250mg or more 1000mg or more(Carbon dioxide springs)
4 Lithium Ion (Li+) 1mg or more
5 Strontium Ion (Sr2+) 10mg or more
6 Barium Ion (Ba2+) 5mg or more
7 Total Iron Ion[Fe2+(Iron(Ⅱ) Ferro ion)+Fe3+(Iron(Ⅲ) Ferri ion)] 10mg or more 20mg or more(Iron containing springs)
8 First Manganese Ion (Mn2+) 10mg or more
9 Hydrogen Ion (H+) 1mg or more 1mg or more(Acid springs)
10 Bromine Ion (Br-) 5mg or more
11 Iodide Ion (I-) 1mg or more 10mg or more (Iodine containing Springs)
12 Fluoride Ion (F-) 2mg or more
13 Hydro Arsenate Ion (HAsO42-) 1.3mg or more
14 Meta Arsenite (HAsO2) 1mg or more
15 Total sulfur (S) [HS-(Hydrogen sulfide ion)+S2O32-(Thiosulfate Ion)+H2S(Free hydrogen sulfide)] 1mg or more 2mg or more (Sulfur Springs)
16 Metaboric acid (HBO2) 5mg or more
17 Metasilicic acid (H2SiO3) 50mg or more
18 Bicarbonate soda (NaHCO3) 340mg or more
19 Radon (Rn) 20 or more(unit: ten ppb curie)
20×10-10Ci(curie) or more
20 or more(ten ppb curie)
=74Bq(becquerel)/5.5 mache or more
30 nanocurie or more(Radioactive springs)
30×10-10Ci(curie) or more
30(ten ppb curie) or more
=111Bq(becquerel)/8.25 mache or more
20 Radium salt (as Ra) 10-8mg or more
1/100 million mg or more
Number of conditions cleared this "hot spring" or "therapeutic hot spring" is: 3 2
Total 5 Points

※Conditions called "hot spring" in Japan are expressed in terms of number of points.

Hot Spring Legends and More

Traditionally documented efficacies

Gastrointestinal disorders, Neuralgia, Sensitivity to cold

Historical figures who bathed in this hot spring

Novelist Osamu Dazai (1909-1948), poet Makisui Wakayama (1885-1928), novelist and literary critic Yasunari Kawabata (1899-1972)

Celebrities who bathed in this hot spring

Numerous cultural and celebrity visitors, not mentioned due to private use

Hot Spring (Onsen) Report

The "Bettei Senjuan" uses a mixture of three private sources of spring water.
The names of the three sources are "Kuraoki-no-Yu", "Kajika-no-Yu", and "Senju-no-Yu", and the mixing ratio is 5 : 8 : 12.
All sources are power-pumped. In other words, they are hot springs obtained by boring (digging a deep, narrow hole in the ground) and drilling.
Gushing volume: approx. 360 liters/minute (total of three private sources). The maximum capacity of the inn is 50 people, which means that 7.2 liters/minute of spring water can be used per person by simple calculation.
Although there are various theories, it is said that a gush rate of about 1 liter/minute per person is necessary to enjoy bathing in clean conditions.
If the amount of water gushing out is less than this, facilities such as circulators and chlorine sterilization will be required.
At the "Bettei Senjuan", even by the numbers, you can see that there are more than enough springs available.
The inn has a total of 18 rooms, all with open-air baths. In addition to the guest room open-air baths, the Ichi-no-Kura and Sen-no-Kura public baths for men and women, respectively, have open-air baths called "Suzumushi-no-Yu" and "Hotaru-no-Yu". Of course, all bathtubs are free-flowing hot spring water.
In simple words, the source of spring water is poured into the bathtub and the overflowing water is poured directly down the drain and discarded. Although it can be said that this is an extravagant use of hot water, it can also be said that this method of using hot water is the most effective way to demonstrate the inherent power of the hot spring. The name of the spring quality is "Calcium Sodium-Sulfate Chloride Hot Spring".
First of all, if we speak of the features in the order of their ingredients, the first one is the expression "Hot spring for strokes" from "Sulfate spring".
This is due to its ability to prevent arteriosclerosis and lower blood pressure.
The second is commonly known as "Hot spring for anti-aging" or "Hot spring for rejuvenation" due to its skin revitalizing effects.
This is because Calcium-Sulfate spring stimulates the elasticity of the skin and prevents wrinkles.
The third feature of "Sulfate Springs" is that, like "Chloride Springs," they are also called "Hot springs for cuts" because they are effective in reducing surface skin problems such as cuts, burns, and acne.
The sterilizing effect of the salt content is what makes it effective against cuts and scars.
The fourth feature, "Chloride spring" is said to be "Hot spring for warmth" and "Hot spring for heat" because the salts adhere to the skin, preventing evaporation of sweat, thus creating a moisturizing effect and making it difficult to cool down. It is recommended for those who suffers from sensitivity to cold.
Fifth, it should not be overlooked that the hot spring is weak alkaline with a pH of 8.4.
Since human skin is generally slightly acidic, soaking in this hot spring reacts with the surface of the skin, making it smooth and creamy to the touch.
This texture occurs because the dead skin cells on the skin surface are dissolved. After the bath, the skin will be slippery and smooth.
The "Sulfate spring" and "Weak alkaline hot spring" make it possible to assert that the hot spring at "Bettei Senjuan" is a "Hot spring for beauty".
However, although it depends on the ratio of dissolved substances, in general, after bathing in an alkaline hot spring, the dead skin cells are exfoliated and the skin becomes smooth, but it tends to dry out quickly.
But the hot spring here at "Bettei Senjuan" is also a "Chloride spring", so it acts like a moisturizer due to the coating effect of salt.
This is why it is said to be a good finishing touch for "Hot spring for beauty".
Another way to describe it is that, although it is a weak alkaline hot spring, the coating effect of the "Chloride spring" prevents skin dryness, and the "Sulfate spring" also has a skin revitalizing effect, making it "A complete bath" from the standpoint of beauty. In other words, it can be called a hybrid "Hot spring for beauty" with multiple indications.

Public Bath for men and women, Indoor bath "Ichi-no-Kura" Public Bath for men and women, Open-air bath "Suzumushi-no-Yu"
Public Bath for men and women, Indoor bath Ichi-no-Kura Public Bath for men and women, Open-air bath Suzumushi-no-Yu
Public bath "Ichi-no-Kura" is a pair with an open-air bath "Suzumushi-no-Yu", and men and women are switched by the hours. The stone bathtub evokes the power of nature. There is also a dry sauna with excellent thermal efficiency covered by a wall of bincho charcoal. The view from the bathtub, with the Tanigawa River flowing below and lush greenery, is soothing to both body and soul. The bottom of the bathtub is paved with stones, providing a pleasant sensation of moderate pressure. If you listen carefully, you can hear the chirping of wild birds, and you will be able to enjoy a luxurious time while experiencing the fresh hot spring water.
Public Bath for men and women, Indoor bath "Sen-no-Kura" Public Bath for men and women, Open-air bath "Hotaru-no-Yu"
Public Bath for men and women, Indoor bath Sen-no-Kura Public Bath for men and women, Open-air bath Hotaru-no-Yu
The public bath "Sen-no-Kura" is a pair with an open-air bath "Hotaru-no-Yu", and the men and women are switched by the hours. The huge cypress bathtub painted with red lacquer is impressive. "Sen-no-Kura" has a low-temperature mist sauna attached to it. It is recommended especially for women because it is gentle on the skin. The impression is as if you are bathing quietly in the forest. There is also a terrace where you can feel the pleasant breeze blowing in the Tanigawa valley. Repeating this cycle of warming up in the hot spring and cooling down on the terrace is called "contrast water therapy", and is said to be highly effective in relieving fatigue.

Facility Report

Tanigawa Onsen is located on the border between Gunma and Niigata prefectures, amidst a mountain stream and forest filled with negative ions, with a view of the famous Mt. Tanigawadake (altitude 1977m). Tanigawa Onsen is a relatively small hot spring area, but it seems to attract many travelers because of its one of a kind atmosphere and nature-rich environment. Tanigawa Onsen is said to have opened around 1400. There are records that literary figures and artists such as Osamu Dazai, Makisui Wakayama, and Yasunari Kawabata visited the area during the Taisho and early Showa eras. The "Bettei Senjuan" opened in 1997 as an annex of Ryokan Tanigawa on a vast site of 8,000 tsubo (about 6.5 Acres), which has now been expanded with the purchase of additional land to 20,000 tsubo (about 16 Acres). At the time, there were several inns in Japan offering guest rooms with open-air baths, but Senjuan may have been the first inn to offer open-air baths in every room. In 2012, the hotel was approved to join Relais & Chateaux, a prestigious hotel and restaurant group based in France. To become a member, a hotel or restaurant is subject to a strict "5C" assessment: Courtesy (heartfelt hospitality), Charm (refined and attractive space), Character (distinctive and individual style), Calm (calm and relaxing atmosphere), and Cuisine (high quality cuisine). Only a few hotels and lodging facilities in Japan have been approved to join Relais & Chateaux, and one of them is "Bettei Senjuan". The "Bettei Senjuan" has continued to thrive since its opening. This is probably due to the fact that the facilities are continually evolving and repeat customers keep coming back. A reading room was built in 1998, and dining rooms were added in 2000, 2006, and 2008. In 2004, an esthetic salon and footbath were opened. In 2008, a garden terrace with a hand bath was opened. The company is planning to hold events using the garden terrace and spacious courtyard to unite with nature, and we can look forward to its further evolution. The high level of not only the tangible aspect but also the intangible aspect of "hospitality" can be felt from many of the staff members. Under the leadership of Hidehiro Kubo, the president of the inn, the spirit to create a good facility can be felt. An inn that improves its intangible aspects in parallel with the tangible aspects of its facilities will also have a high level of customer satisfaction. The customers who frequent this facility may be more accurately described as supporters than repeaters. Spending time in a luxurious space in a quiet mountain setting is the happiest moment for a human being. It is a wise choice to spend a blissful time at the "Bettei Senjuan".

Travel Journal

Rates Data

1 night/2 meals fee From 48,550 yen
Private bath fee
when overnight stay
All rooms have an open-air bath
Day stay No settings
Private bath
for day-stay
No settings

Facility Data

Establishment Established in 1997
Check-In 1:00 p.m.
Check-Out 11:00 a.m.
Location and Environment Mountain
Number of Rooms All 18 rooms
15 Japanese-style rooms, 1 Japanese/Western-style room, 2 Western-style rooms (all with bath and toilet)
Number of People
Accommodated
50 persons
Parking Area Available for 17 cars
Facilities Bar, Esthetic salon, Shop, Garden, Reading room
Internet Wi-Fi available in all rooms
Barrier Free Only one room is supported
Toilet with washer All rooms are equipped

Transportation Access

By train From Jyoetsu Line "Mizukami Station" 10 min. by car
By bus From "Jomo Kogen Station" of Shinkansen, about 25 min. by bus
By car From Kanetsu Expressway Mizukami IC, about 10 min.
Address Gunma / Tanigawa Onsen / BETTEI SENJUAN
614, Tanigawa, Minakami-machi, Tone-gun, Gunma 379-1619, JAPAN Phone:+81-(0)278-20-4141

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Data
May 16, 2024

Review

Mayu Araki

The facilities, the room, the bath... Everything was amazing and I felt like I was in a work of art. It was a waste to get out of the hot spring when the heat retention effect is enough to make you feel warm and fuzzy!


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ONSENCOM INC.
2-5-2, Motoyokoyama-cho, Hachioji-shi, Tokyo-to, 192-0063, JAPAN