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Ringo no Yuya Obu
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  4. >Ringo no Yuya Obu

Nagano Matsumoto City

Ringo no Yuya Obu

A celebrated sento with drinkable Northern Alps spring water and the most electric baths in Japan

  • Red Cedar Wood
  • Aufguss available
  • Auto löyly available
  • Finnish sauna
  • Sauna Available
  • Natural water cold bath

Nagano Matsumoto City

Ringo no Yuya Obu

A celebrated sento with drinkable Northern Alps spring water and the most electric baths in Japan

  • Red Cedar Wood
  • Aufguss available
  • Auto löyly available
  • Finnish sauna
  • Sauna Available
  • Natural water cold bath

About Ringo no Yuya Obu

Ringo no Yuya Obu is a sento for day visits in Matsumoto, Nagano Prefecture. Underground spring water from the Japanese Alps, broken down into finer particles with nanotechnology and called “nano water,” is used throughout the building, and the men’s open-air area has Hitori-mizu, an urn-shaped cold plunge whose water you can drink just as it is. The men’s bath has two saunas: Otokomae SAUNA with automatic löyly, and Arigato SAUNA, the first sauna in Nagano Prefecture with löyly you pour yourself. The women’s bath has Beppin SAUNA, designed from a woman’s point of view, and Uruoi SAUNA, a steam room. Its four types of electric bath are the most of any bathhouse in Japan, and with warm-stone bathing, a dining room serving local produce and a second-floor lounge, it is Matsumoto’s best-loved sento.

BathBATH

Carbonated bath

An indoor carbonated bath. Carbon dioxide absorbed through the skin dilates the capillaries, and better circulation can be expected. A long soak warms the body through, and combined with the electric baths (the double effect of carbonation and low-frequency current) it leads to deeper relaxation.

Carbonated bath

An indoor carbonated bath. Carbon dioxide absorbed through the skin dilates the capillaries, and better circulation can be expected. A long soak warms the body through, and combined with the electric baths (the double effect of carbonation and low-frequency current) it leads to deeper relaxation.

Electric baths (4 types)

The signature bath, featured on Japanese TV, with four types of electric bath, the most in Japan. There are four: Zaraku-no-Yu (a first in Japan), which massages the lower back and knees at the same time; Yumomi-no-Yu Lower Back; Yumomi-no-Yu Shoulders; and Yumomi-no-Yu Knees. Three kinds of low-frequency current target chosen parts of the body precisely, improving circulation and loosening the muscles at once. It is designed so that pairing it with the carbonated bath heightens the effect further.

Electric baths (4 types)

The signature bath, featured on Japanese TV, with four types of electric bath, the most in Japan. There are four: Zaraku-no-Yu (a first in Japan), which massages the lower back and knees at the same time; Yumomi-no-Yu Lower Back; Yumomi-no-Yu Shoulders; and Yumomi-no-Yu Knees. Three kinds of low-frequency current target chosen parts of the body precisely, improving circulation and loosening the muscles at once. It is designed so that pairing it with the carbonated bath heightens the effect further.

Open-air bath

An open-air bath that brings the mood of Matsumoto, a “little Kyoto,” into every detail. You soak looking up at blue sky by day and stars by night, in a space with a distinctly Japanese atmosphere. Wrapped in soft water made from Northern Alps underground spring nano water, you can feel the seasons change on your skin. Between rounds of sauna and cold plunge, it is the ideal place to let your body go.

Open-air bath

An open-air bath that brings the mood of Matsumoto, a “little Kyoto,” into every detail. You soak looking up at blue sky by day and stars by night, in a space with a distinctly Japanese atmosphere. Wrapped in soft water made from Northern Alps underground spring nano water, you can feel the seasons change on your skin. Between rounds of sauna and cold plunge, it is the ideal place to let your body go.

SaunaSAUNA

Arigato SAUNA

Here you pour hot water directly over the sauna stones yourself and feel the heat rise. In a calm room done in dark tones, you have the luxury of deciding for yourself how you sit in the steam. You feel the steam rise at close range the instant the löyly hits the stones, and you create with your own hand the moment the waves of heat wrap around you.

Arigato SAUNA

Here you pour hot water directly over the sauna stones yourself and feel the heat rise. In a calm room done in dark tones, you have the luxury of deciding for yourself how you sit in the steam. You feel the steam rise at close range the instant the löyly hits the stones, and you create with your own hand the moment the waves of heat wrap around you.

Otokomae SAUNA

A serious automatic löyly sauna with overwhelming heat and powerful aufguss. In the spacious stadium-style room you take in the full force of dynamic steam and waves of heat. It is designed to host aufguss events, and every Sunday at Obu Aufguss, aufguss masters put on full-scale performances fanning waves of heat. Heavy red cedar walls throw back the intense heat, and dense steam wraps the whole body. It is a sanctuary where gentlemen take the heat as far as it will go.

Otokomae SAUNA

A serious automatic löyly sauna with overwhelming heat and powerful aufguss. In the spacious stadium-style room you take in the full force of dynamic steam and waves of heat. It is designed to host aufguss events, and every Sunday at Obu Aufguss, aufguss masters put on full-scale performances fanning waves of heat. Heavy red cedar walls throw back the intense heat, and dense steam wraps the whole body. It is a sanctuary where gentlemen take the heat as far as it will go.

Beppin SAUNA

A special sauna room that gives shape to “the sauna women really want,” based on surveys of women by female staff and a research company. Scent, seating comfort and color were all designed from a woman’s point of view, creating a space that is both comfortable and soothing. It runs at the same temperature as the men’s sauna, but its visual beauty and the scent in the air layer a rich sense of relaxation over the sweat. Sweating slowly while settling skin and mind, it is a sauna you will want to return to every day to keep your body warm.

Beppin SAUNA

A special sauna room that gives shape to “the sauna women really want,” based on surveys of women by female staff and a research company. Scent, seating comfort and color were all designed from a woman’s point of view, creating a space that is both comfortable and soothing. It runs at the same temperature as the men’s sauna, but its visual beauty and the scent in the air layer a rich sense of relaxation over the sweat. Sweating slowly while settling skin and mind, it is a sauna you will want to return to every day to keep your body warm.

04SAUNA

Uruoi SAUNA

Women's

A women-only steam room built around three things: beautiful skin, detox and moisture. Unlike a high-temperature dry sauna, it surrounds you with gentle temperatures and steam, so you sweat slowly while moisture is given to the skin. Its distinctive design lets you use it as skincare: apply mud or salt to your face before going in, let it steam in the room, then rinse it off at the dedicated shower near the entrance. Mild and easy to enter, it is valued by those new to saunas and by those who come for skincare.

Cold BathCOLD BATH

Hitori-mizu

A one-person, urn-style cold plunge set in a corner of the lush greenery around the open-air bath. The Northern Alps underground spring water (nano water) that flows constantly from the spout is clean enough to drink just as it is. You soak alone in the urn and cool your body at your own pace, a luxurious moment. The greenery around you fills your view, and the openness of the outdoors sits alongside the snug embrace of the urn.

FeaturesFlow-through

Hitori-mizu

A one-person, urn-style cold plunge set in a corner of the lush greenery around the open-air bath. The Northern Alps underground spring water (nano water) that flows constantly from the spout is clean enough to drink just as it is. You soak alone in the urn and cool your body at your own pace, a luxurious moment. The greenery around you fills your view, and the openness of the outdoors sits alongside the snug embrace of the urn.

FeaturesFlow-through

Binchotan charcoal cold plunge

A cold plunge of underground spring water that flows beneath the Northern Alps, refined with the latest nanotechnology into nano water that is even gentler on the body, and filtered through binchotan charcoal. This spring water, a gift of the Alps, passes through the binchotan and comes out with a fine, delicate texture. The mellowness of natural water and the softness of nano water gently cool a body heated in the sauna. The fine water particles seem to cling to the skin, bringing a deep cool-down.

Binchotan charcoal cold plunge

A cold plunge of underground spring water that flows beneath the Northern Alps, refined with the latest nanotechnology into nano water that is even gentler on the body, and filtered through binchotan charcoal. This spring water, a gift of the Alps, passes through the binchotan and comes out with a fine, delicate texture. The mellowness of natural water and the softness of nano water gently cool a body heated in the sauna. The fine water particles seem to cling to the skin, bringing a deep cool-down.

Binchotan charcoal cold plunge

A cold plunge of “nano water,” Northern Alps underground spring water pure enough to be used in sake brewing, broken down even finer with nanotechnology. Binchotan charcoal set at the water inlet keeps the water cleaner still, and its hallmark is a soft water that seems to cling to the skin.

FeaturesFlow-through

Binchotan charcoal cold plunge

A cold plunge of “nano water,” Northern Alps underground spring water pure enough to be used in sake brewing, broken down even finer with nanotechnology. Binchotan charcoal set at the water inlet keeps the water cleaner still, and its hallmark is a soft water that seems to cling to the skin.

FeaturesFlow-through
Ringo no Yuya ObuSpread 40 of 65This spread — freeFeatured in the magazineThis place is one of the 65 in Japan's Finest Onsen & SaunaWhat this page doesn’t hold: what I felt here, and why it survived the cut. That spread is free to read.Read its pages

Facility Information

Address
3-9-44 Ishishiba, Matsumoto, Nagano
Business Hours
09:00〜23:00

Irregular Holidays

Closed Days
Irregular Holidays
Gender Access
Gender Separated
Tattoo Policy (Communal Bath)
No Tattoos
Official Website
View official site

Access

By car

  • About 4.5 hours from Nishinomiya on the Meishin Expressway
  • About 4 hours from Otsu on the Meishin Expressway
  • About 2.5 hours from Komaki on the Meishin Expressway
  • About 2.5 hours from Hachioji on the Chuo Expressway

By train and bus

  • JR Matsumoto Station (Matsumoto Bus Terminal, stop 5, Airport–Imai Line) → Nomizoguchi bus stop, about 17 minutes
  • JR Minami-Matsumoto Station or JR Hirata Station → Minami-Matsumoto–Hirata community bus, about 13 minutes → Obu bus stop

About a 5-minute walk from Nomizoguchi bus stop (turn in just before the ENEOS gas station). Obu bus stop is right in front of the bathhouse entrance. Parking for 250 cars. Parking for large buses and trucks is unavailable for the time being from April 3, 2026

View official site

Visited by the Editor-in-Chief

The Editor-in-Chief visited in person in March 2026

Ending the Journey with the Ultimate Cold Plunge Bath

Read the full review→

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