A next-generation sento that rewrote the history of Kinshicho, brought to life by a DJ booth and craft beer
Tokyo Sumida City
"Koganeyu" is a long-established sento in Sumida, Tokyo, founded in 1932. A 2020 renovation transformed it into a one-of-a-kind designer sento with a DJ booth and beer bar. Its greatest highlight is the authentic sauna and cold plunge bath in the dedicated sauna area. The men's bath features a high-temperature sauna with automatic löyly every 15 minutes, while the women's bath offers a self-löyly sauna scented with Japanese-grown hinoki cypress. The spacious cold plunge bath, with a depth of over 90 cm, is filled with crisp underground water that envelops your entire body, and when combined with open-air bathing under the city sky, it leads you to the ultimate state of totonou.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity12people
A high-temperature sauna where automatic löyly is held every 15 minutes, maintaining a consistently powerful heat and moderate humidity. The walls, made with bakuhanseki, efficiently transmit radiant heat, helping you work up a sweat quickly. With no TV inside, the quiet room lets you focus deeply.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity4people
A women-only sauna lavishly built with Japanese-grown hinoki cypress, filled with the scent of wood. You can enjoy self-löyly at your own pace and relax while enveloped in pleasant steam. Though compact, its high-quality sauna experience is part of its appeal.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity3people
A cold plunge bath supplied with continuously flowing pumped underground water.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity8people
A spacious cold plunge bath located in the sauna area, with a depth of over 90 cm. Crisp underground water quickly tightens up a heated body. Enjoy a refreshing cool-down in a dreamlike atmosphere with underwater lighting.
Closed Days: None
4-14-6 Taihei, Sumida City, Tokyo 130-0012
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
A next-generation sento that rewrote the history of Kinshicho, brought to life by a DJ booth and craft beer
Tokyo Sumida City
"Koganeyu" is a long-established sento in Sumida, Tokyo, founded in 1932. A 2020 renovation transformed it into a one-of-a-kind designer sento with a DJ booth and beer bar. Its greatest highlight is the authentic sauna and cold plunge bath in the dedicated sauna area. The men's bath features a high-temperature sauna with automatic löyly every 15 minutes, while the women's bath offers a self-löyly sauna scented with Japanese-grown hinoki cypress. The spacious cold plunge bath, with a depth of over 90 cm, is filled with crisp underground water that envelops your entire body, and when combined with open-air bathing under the city sky, it leads you to the ultimate state of totonou.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity12people
A high-temperature sauna where automatic löyly is held every 15 minutes, maintaining a consistently powerful heat and moderate humidity. The walls, made with bakuhanseki, efficiently transmit radiant heat, helping you work up a sweat quickly. With no TV inside, the quiet room lets you focus deeply.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity4people
A women-only sauna lavishly built with Japanese-grown hinoki cypress, filled with the scent of wood. You can enjoy self-löyly at your own pace and relax while enveloped in pleasant steam. Though compact, its high-quality sauna experience is part of its appeal.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity3people
A cold plunge bath supplied with continuously flowing pumped underground water.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity8people
A spacious cold plunge bath located in the sauna area, with a depth of over 90 cm. Crisp underground water quickly tightens up a heated body. Enjoy a refreshing cool-down in a dreamlike atmosphere with underwater lighting.
Closed Days: None
4-14-6 Taihei, Sumida City, Tokyo 130-0012
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