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Maenohara Onsen Sayanoyudokoro
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  4. >Maenohara Onsen Sayanoyudokoro

Tokyo Itabashi City

Maenohara Onsen Sayanoyudokoro

An oasis in Tokyo, with olive-green water fed straight from the source and a beautiful Japanese garden

  • Reserved onsen available
  • Natural Hot Spring
  • Free-flow from source
  • Sauna Available
  • Natural water cold bath
  • Cold Bath Available

Tokyo Itabashi City

Maenohara Onsen Sayanoyudokoro

An oasis in Tokyo, with olive-green water fed straight from the source and a beautiful Japanese garden

  • Reserved onsen available
  • Natural Hot Spring
  • Free-flow from source
  • Sauna Available
  • Natural water cold bath
  • Cold Bath Available

About Maenohara Onsen Sayanoyudokoro

Maenohara Onsen Sayanoyudokoro is a day-use onsen bathhouse in Itabashi, Tokyo. Here you can soak in an iodine-bearing sodium chloride strong saline spring, its water the olive green of the Japanese bush warbler and rare within Tokyo, fed straight from the source, never recirculated. After a good sweat in the dry sauna, the cold plunge, filled with soft well water, cools you down pleasantly. Cooling off in the open air while gazing at a beautiful Japanese garden that changes with each season lets you forget the bustle of the city. With warm-stone rooms, a restaurant serving soba made entirely of buckwheat, and relaxation treatments such as aromatherapy, you can spend a whole unhurried day here.

Hot SpringONSEN

Source bath

An open-air bath where you can luxuriate in cloudy olive-green water, rare within Tokyo, fed straight from the source, never recirculated, with no water added. The highly saline water wraps gently around the skin, and the warmth lingers long after you step out. In the clear air, you can enjoy a truly superb soak.

FeaturesFree-flow from source

Source bath

An open-air bath where you can luxuriate in cloudy olive-green water, rare within Tokyo, fed straight from the source, never recirculated, with no water added. The highly saline water wraps gently around the skin, and the warmth lingers long after you step out. In the clear air, you can enjoy a truly superb soak.

FeaturesFree-flow from source

Open-air bath

An airy open-air bath surrounded by lush trees. By day you bathe in sunlight filtering through the leaves, and by night you look up at the stars and the moon, enjoying the natural onsen amid scenery that changes with each season. A soothing space where body and mind can relax.

Open-air bath

An airy open-air bath surrounded by lush trees. By day you bathe in sunlight filtering through the leaves, and by night you look up at the stars and the moon, enjoying the natural onsen amid scenery that changes with each season. A soothing space where body and mind can relax.

Akari, a private semi-open-air bath

Akari, a private semi-open-air bath, sits quietly within the garden. In this private space where no one will disturb you, you can take your time enjoying the natural onsen with someone special. Wrapped in silence and full of Japanese character, it offers a special moment of calm.

Akari, a private semi-open-air bath

Akari, a private semi-open-air bath, sits quietly within the garden. In this private space where no one will disturb you, you can take your time enjoying the natural onsen with someone special. Wrapped in silence and full of Japanese character, it offers a special moment of calm.

SaunaSAUNA

Nekki Buro (dry sauna)

A bright, spacious tower-style dry sauna. The higher you sit, the more powerful the heat, drawing out a thorough sweat. In the quiet room you can turn inward and enjoy a pleasant sweat that warms you to the core.

Nekki Buro (dry sauna)

A bright, spacious tower-style dry sauna. The higher you sit, the more powerful the heat, drawing out a thorough sweat. In the quiet room you can turn inward and enjoy a pleasant sweat that warms you to the core.

Yakuso Shiomushi Buro (steam room)

A women-only steam room filled with the rich scent of Chinese medicinal herbs and hot steam. The herbs change weekly, from Japanese and Chinese medicinal herbs to mugwort and other herbs, wrapping you in a pleasant fragrance. Gently rubbing the salt provided into your skin brings an even deeper sweat and a smooth feel to the skin.

Yakuso Shiomushi Buro (steam room)

A women-only steam room filled with the rich scent of Chinese medicinal herbs and hot steam. The herbs change weekly, from Japanese and Chinese medicinal herbs to mugwort and other herbs, wrapping you in a pleasant fragrance. Gently rubbing the salt provided into your skin brings an even deeper sweat and a smooth feel to the skin.

Cold BathCOLD BATH

Cold plunge

A cold plunge filled with well water, set right beside the sauna. The water feels exceptionally soft on the skin, gently enveloping a body flushed from the sauna as it cools you down. From the cold plunge you can move smoothly on to blissful time cooling off in the open air, gazing at a Japanese garden that changes with each season.

Cold plunge

A cold plunge filled with well water, set right beside the sauna. The water feels exceptionally soft on the skin, gently enveloping a body flushed from the sauna as it cools you down. From the cold plunge you can move smoothly on to blissful time cooling off in the open air, gazing at a Japanese garden that changes with each season.

Hot Stone SpaHOT STONE SPA

Ganbandokoro (warm-stone rooms)

Extra fee

A warm-stone area made up of rooms with four different temperatures and themes, one for each season: spring, summer, autumn and winter. Men and women can use it together in the special wear provided, and far-infrared heat radiating from natural stones such as tenjuseki and yakuhogyokuseki slowly warms you to the core. There is also a winter room where cool air pulls the skin taut, so you can enjoy detoxing at your own pace for as long as you like.

Ganbandokoro (warm-stone rooms)

Extra fee

A warm-stone area made up of rooms with four different temperatures and themes, one for each season: spring, summer, autumn and winter. Men and women can use it together in the special wear provided, and far-infrared heat radiating from natural stones such as tenjuseki and yakuhogyokuseki slowly warms you to the core. There is also a winter room where cool air pulls the skin taut, so you can enjoy detoxing at your own pace for as long as you like.

Stay nearby

Where to stay near Maenohara Onsen Sayanoyudokoro

Hotels and ryokan we feature, within 10 km in a straight line.

✦Visited December 2025

4.5 km · Toshima City

Sauna & Hotel Karumaru Ikebukuro

✦Visited December 2025

One of the Kanto region’s largest sauna hotels, with four saunas and four cold plunges

Book on AgodaDetails

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Facility Information

Address
3-41-1 Maenocho, Itabashi-ku, Tokyo 174-0063
Business Hours
09:00〜00:00

Irregular Holidays

Closed Days
Irregular Holidays
Gender Access
Gender Separated
Tattoo Policy (Communal Bath)
OK if fully covered with designated stickers

Entry is permitted if the tattoo can be completely covered with no more than two of the designated tattoo cover stickers (11 cm × 20 cm (4.3 × 7.9 in)).

Official Website
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Access

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