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Tokyo Nerima City
Toshimaen Niwa no Yu in Mukoyama, Nerima-ku, Tokyo, is an 'otherworldly escape in the city' surrounded by a 1,200 tsubo Japanese garden. The outdoor Finnish sauna in the garden features 600 kg of sauna stones and an automatic löyly system, promoting vigorous sweating with the scent of wood. The mist-type steam sauna is set at 45-50°C, gently warming the body with humid heat. For cooling, there is a deep cold plunge bath with a garden view, 140 cm deep, enhancing the 'totonou' experience quietly with the outdoor environment. The water is a natural hot spring rising from 1,445 meters underground, with both open-air and indoor baths offering views of the garden.
TypeNatural Hot Spring
Utilizes natural hot spring water pumped from 1,445 meters underground. The spring quality includes ions such as sodium, calcium, and iron, with both indoor and open-air baths available, allowing for a relaxing soak while enjoying the garden view.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity25people
A sauna hut richly lined with fragrant natural woods such as red cedar. You can sit on the relatively wide benches and warm up slowly. The uppermost area has a low ceiling, allowing you to experience intense steam and heat pouring down like in authentic saunas. A quiet sauna with dim, warm lighting. Renovated in April 2024, it now features automatic löyly every 15 minutes. Sauna mats are available outside the sauna room. No TV.
Sauna TypeSteam Sauna
Stove TypeBuilt-in Stove
Capacity5people
A low-temperature, high-humidity type that warms the floor, walls, and seats, allowing heat to gently radiate. Recreates the steam bath of ancient Roman baths, promoting comfortable sweating. Located in the sauna area of the bathing zone.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity30people
An outdoor sauna requiring swimwear. Equipped with an automatic löyly function and 600 kg of sauna stones, aufguss sessions are also conducted. Incorporates the outdoor air and garden scenery, providing deep warmth with intense heat and aroma.
Water QualitySoft Water
Capacity4people
Enjoy views of snowy scenery that enhance the feeling of being in Finland. The adjacent bucket shower is recommended for rinsing before entering. This deep cold plunge bath lets you soak up to your shoulders, causing rapid vasoconstriction and promoting circulation.
Water QualitySoft Water
Capacity1people
A special-design cold plunge bath inspired by the Finnish practice of cutting a hole in a frozen lake. It cools a heated body from feet to head in one go. Depth 140cm. An overhead bucket shower is also installed.
Closed Days: None
3-25-1 Mukoyama, Nerima-ku, Tokyo
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 Nerima City
Toshimaen Niwa no Yu in Mukoyama, Nerima-ku, Tokyo, is an 'otherworldly escape in the city' surrounded by a 1,200 tsubo Japanese garden. The outdoor Finnish sauna in the garden features 600 kg of sauna stones and an automatic löyly system, promoting vigorous sweating with the scent of wood. The mist-type steam sauna is set at 45-50°C, gently warming the body with humid heat. For cooling, there is a deep cold plunge bath with a garden view, 140 cm deep, enhancing the 'totonou' experience quietly with the outdoor environment. The water is a natural hot spring rising from 1,445 meters underground, with both open-air and indoor baths offering views of the garden.
TypeNatural Hot Spring
Utilizes natural hot spring water pumped from 1,445 meters underground. The spring quality includes ions such as sodium, calcium, and iron, with both indoor and open-air baths available, allowing for a relaxing soak while enjoying the garden view.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity25people
A sauna hut richly lined with fragrant natural woods such as red cedar. You can sit on the relatively wide benches and warm up slowly. The uppermost area has a low ceiling, allowing you to experience intense steam and heat pouring down like in authentic saunas. A quiet sauna with dim, warm lighting. Renovated in April 2024, it now features automatic löyly every 15 minutes. Sauna mats are available outside the sauna room. No TV.
Sauna TypeSteam Sauna
Stove TypeBuilt-in Stove
Capacity5people
A low-temperature, high-humidity type that warms the floor, walls, and seats, allowing heat to gently radiate. Recreates the steam bath of ancient Roman baths, promoting comfortable sweating. Located in the sauna area of the bathing zone.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity30people
An outdoor sauna requiring swimwear. Equipped with an automatic löyly function and 600 kg of sauna stones, aufguss sessions are also conducted. Incorporates the outdoor air and garden scenery, providing deep warmth with intense heat and aroma.
Water QualitySoft Water
Capacity4people
Enjoy views of snowy scenery that enhance the feeling of being in Finland. The adjacent bucket shower is recommended for rinsing before entering. This deep cold plunge bath lets you soak up to your shoulders, causing rapid vasoconstriction and promoting circulation.
Water QualitySoft Water
Capacity1people
A special-design cold plunge bath inspired by the Finnish practice of cutting a hole in a frozen lake. It cools a heated body from feet to head in one go. Depth 140cm. An overhead bucket shower is also installed.
Closed Days: None
3-25-1 Mukoyama, Nerima-ku, Tokyo
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