Powerful heat waves from the all-japanese-cypress sauna and the luxury of a flowing groundwater cold plunge bath
Chiba Ichihara City
"Yakuto Ichihara Branch" is a long-established health center in Ichihara, Chiba Prefecture. Its signature sauna room is built entirely of Japanese cypress, and the auto-löyly performed every 20 minutes delivers three consecutive water pours onto the sauna stones, surrounding your whole body with an intense wave of heat. The cold plunge bath uses natural groundwater drawn from 130 m underground, offering both a smooth feel against the skin and a crisp, refreshing chill. The signature Yakuto bath is a full-fledged medicinal bath made with a concentrated blend of herbal ingredients, and is said to warm you from the inside out. Beloved by sauna enthusiasts, it is truly one of the sacred places of sauna.
TypeSpecialty Bath
An authentic medicinal bath characterized by an invigorating aroma, blended in-house from several kinds of herbal ingredients. The concentration of its components is extremely high, so you can feel your body warming from the core almost immediately after bathing. It is expected to be highly effective for promoting circulation and relieving fatigue, and its distinctive tingling sensation makes it an addictive signature bath that symbolizes the facility.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity18people
A fragrant sauna room built entirely of Japanese cypress. In the auto-löyly that activates every 20 minutes, water is poured three times in succession onto the sauna stones, instantly filling the room with superb heat. Heat circulates extremely well, allowing for refreshing perspiration even in a short time. Aufguss events are also held regularly, offering a lively sauna experience.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity5people
Generously supplied with fresh natural groundwater drawn from 130 m underground and used in a flowing style. Its signature feature is a mellow, smooth feel against the skin, gently yet firmly cooling down a body heated by the sauna. Because fresh water is constantly supplied, the sense of refreshment is outstanding. A carefully crafted cold plunge bath that leads you to blissful totonou.
Closed Days: None
〒290-0062 Chiba Prefecture, Ichihara City, Yahata 973
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
Powerful heat waves from the all-japanese-cypress sauna and the luxury of a flowing groundwater cold plunge bath
Chiba Ichihara City
"Yakuto Ichihara Branch" is a long-established health center in Ichihara, Chiba Prefecture. Its signature sauna room is built entirely of Japanese cypress, and the auto-löyly performed every 20 minutes delivers three consecutive water pours onto the sauna stones, surrounding your whole body with an intense wave of heat. The cold plunge bath uses natural groundwater drawn from 130 m underground, offering both a smooth feel against the skin and a crisp, refreshing chill. The signature Yakuto bath is a full-fledged medicinal bath made with a concentrated blend of herbal ingredients, and is said to warm you from the inside out. Beloved by sauna enthusiasts, it is truly one of the sacred places of sauna.
TypeSpecialty Bath
An authentic medicinal bath characterized by an invigorating aroma, blended in-house from several kinds of herbal ingredients. The concentration of its components is extremely high, so you can feel your body warming from the core almost immediately after bathing. It is expected to be highly effective for promoting circulation and relieving fatigue, and its distinctive tingling sensation makes it an addictive signature bath that symbolizes the facility.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity18people
A fragrant sauna room built entirely of Japanese cypress. In the auto-löyly that activates every 20 minutes, water is poured three times in succession onto the sauna stones, instantly filling the room with superb heat. Heat circulates extremely well, allowing for refreshing perspiration even in a short time. Aufguss events are also held regularly, offering a lively sauna experience.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity5people
Generously supplied with fresh natural groundwater drawn from 130 m underground and used in a flowing style. Its signature feature is a mellow, smooth feel against the skin, gently yet firmly cooling down a body heated by the sauna. Because fresh water is constantly supplied, the sense of refreshment is outstanding. A carefully crafted cold plunge bath that leads you to blissful totonou.
Closed Days: None
〒290-0062 Chiba Prefecture, Ichihara City, Yahata 973
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