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Tokyo Shinagawa City
The 'Oimachi Branch' is a super sento located in Shinagawa-ku, Tokyo. Just a 3-minute walk from Oimachi Station, it boasts a prime location and features two types of saunas: the 5-tier tower-style King's Sauna and the herbal salt steam bath. You can cool down quickly in the cold plunge bath and enjoy a blissful time reaching a state of perfect relaxation with an outdoor air bath. The facility also offers a variety of baths, including artificial hot springs, high-concentration carbonated baths, and silky baths. In the ganbanyoku 'Honoo no Ma,' you can experience a new sensation of löyly with projection mapping and heat waves. With a restaurant, relaxation services, and body scrubs available, it's a bathing facility where you can relax all day in the city center.
TypeArtificial Hot Spring
The open-air bath made of natural stone features an artificial hot spring that replicates the components of a real hot spring. You can enjoy the texture and warming sensation as if you were in a real hot spring. In the open-air space, you can relax and forget the hustle and bustle of the city. Soaking in it after the sauna and cold plunge bath relaxes you from the core of your body.
Sauna TypeHerb Sauna
Stove TypeBuilt-in Stove
Capacity8people
A steam sauna filled with the aroma of herbs. With high humidity, it gently warms the body and promotes sweating. Massaging your skin with salt helps eliminate waste and leaves your skin smooth. Recommended for those who are not fond of high temperatures, as it allows for long stays at low temperatures. Alternating with the dry sauna enhances the sweating effect.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity18people
A 5-tier tower-style dry sauna. Sitting on the upper tier envelops your body in heat, while the lower tier offers relatively mild heat. You can sweat thoroughly in the spacious area while watching TV. Characterized by deep warming through far-infrared rays, it's a classic sauna that satisfies both beginners and advanced users.
Water QualityTap Water
Capacity6people
A cold plunge bath located right outside the sauna room. With a moderate chill, it comfortably cools down your body heated from the sauna. Its depth allows you to submerge up to your shoulders, effectively cooling your entire body. Entering after thoroughly heating in the King's Sauna prepares you for a refreshing sensation and reaching a state of perfect relaxation.
Closed Days: None
1-50-5 Oi, Shinagawa-ku, Tokyo, 3F
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more—
Tokyo Shinagawa City
The 'Oimachi Branch' is a super sento located in Shinagawa-ku, Tokyo. Just a 3-minute walk from Oimachi Station, it boasts a prime location and features two types of saunas: the 5-tier tower-style King's Sauna and the herbal salt steam bath. You can cool down quickly in the cold plunge bath and enjoy a blissful time reaching a state of perfect relaxation with an outdoor air bath. The facility also offers a variety of baths, including artificial hot springs, high-concentration carbonated baths, and silky baths. In the ganbanyoku 'Honoo no Ma,' you can experience a new sensation of löyly with projection mapping and heat waves. With a restaurant, relaxation services, and body scrubs available, it's a bathing facility where you can relax all day in the city center.
TypeArtificial Hot Spring
The open-air bath made of natural stone features an artificial hot spring that replicates the components of a real hot spring. You can enjoy the texture and warming sensation as if you were in a real hot spring. In the open-air space, you can relax and forget the hustle and bustle of the city. Soaking in it after the sauna and cold plunge bath relaxes you from the core of your body.
Sauna TypeHerb Sauna
Stove TypeBuilt-in Stove
Capacity8people
A steam sauna filled with the aroma of herbs. With high humidity, it gently warms the body and promotes sweating. Massaging your skin with salt helps eliminate waste and leaves your skin smooth. Recommended for those who are not fond of high temperatures, as it allows for long stays at low temperatures. Alternating with the dry sauna enhances the sweating effect.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity18people
A 5-tier tower-style dry sauna. Sitting on the upper tier envelops your body in heat, while the lower tier offers relatively mild heat. You can sweat thoroughly in the spacious area while watching TV. Characterized by deep warming through far-infrared rays, it's a classic sauna that satisfies both beginners and advanced users.
Water QualityTap Water
Capacity6people
A cold plunge bath located right outside the sauna room. With a moderate chill, it comfortably cools down your body heated from the sauna. Its depth allows you to submerge up to your shoulders, effectively cooling your entire body. Entering after thoroughly heating in the King's Sauna prepares you for a refreshing sensation and reaching a state of perfect relaxation.
Closed Days: None
1-50-5 Oi, Shinagawa-ku, Tokyo, 3F
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more