Feel the sea breeze of Kujukuri and relax in the dark brown skin-beautifying hot spring and a variety of saunas
Chiba Chosei
"Spa & Resort Kujukuri Taiyono Sato" is a large spa resort with an expansive grounds, located close to Kujukuri Beach in Chosei Village, Chiba Prefecture. Its natural hot spring, Chosei no Yu, gushes from underground and is a dark brown bath rich in sodium bicarbonate, beloved as a skin-beautifying bath that leaves the skin smooth. The sauna facilities are also well equipped, featuring a dry sauna with far-infrared heating that delivers steady, comfortable warmth, as well as a salt sauna with excellent skin-care benefits. The cold plunge bath helps tighten the body after sauna use, with a pleasant water temperature that allows for a relaxed cool down. With outdoor air bathing in an open-air rotenburo area, one of the largest bedrock bath facilities in Chiba Prefecture, and a restaurant serving fresh local seafood, it is a healing haven where you can spend a luxurious day from start to finish.
TypeNatural Hot Spring
A natural hot spring classified as sodium bicarbonate spring. The dark brown water, rich in bicarbonate, gently softens dead skin cells and is said to leave the skin beautifully smooth after bathing. In the open-air baths, including the all-cypress bath and the rock bath, you can fully enjoy the healing qualities of this famous spring while feeling the nature of Kujukuri.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity18people
A dry sauna heated by far-infrared heaters, characterized by its mild, comfortable warmth. Because the temperature is set relatively low, it is easy to breathe in, and you can warm your body deeply from the core over time. In the spacious room, you can relax while watching TV and enjoy a leisurely sweat.
Sauna TypeSalt Sauna
Capacity5people
A sauna where you apply the salt provided in the room to your body, helping to wash away dead skin cells along with perspiration and leave the skin smooth. It is ideal when you want to sweat more slowly than in a dry sauna, or when you want to focus on skin care. The experience, wrapped in moisture and gently loosening both body and mind, is especially appealing.
Water QualityTap Water
Capacity5people
A generously sized cold plunge bath located right near the sauna room. With a stable water temperature of around 18°C, it gently yet effectively cools down your heated body after sauna use. The water feels pleasant against the skin and supports a satisfying totonou experience that leads into a refreshing outdoor air bath.
Closed Days: None
299-4327 3445 Ichimatsu, Chosei Village, Chosei District, Chiba Prefecture
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
Feel the sea breeze of Kujukuri and relax in the dark brown skin-beautifying hot spring and a variety of saunas
Chiba Chosei
"Spa & Resort Kujukuri Taiyono Sato" is a large spa resort with an expansive grounds, located close to Kujukuri Beach in Chosei Village, Chiba Prefecture. Its natural hot spring, Chosei no Yu, gushes from underground and is a dark brown bath rich in sodium bicarbonate, beloved as a skin-beautifying bath that leaves the skin smooth. The sauna facilities are also well equipped, featuring a dry sauna with far-infrared heating that delivers steady, comfortable warmth, as well as a salt sauna with excellent skin-care benefits. The cold plunge bath helps tighten the body after sauna use, with a pleasant water temperature that allows for a relaxed cool down. With outdoor air bathing in an open-air rotenburo area, one of the largest bedrock bath facilities in Chiba Prefecture, and a restaurant serving fresh local seafood, it is a healing haven where you can spend a luxurious day from start to finish.
TypeNatural Hot Spring
A natural hot spring classified as sodium bicarbonate spring. The dark brown water, rich in bicarbonate, gently softens dead skin cells and is said to leave the skin beautifully smooth after bathing. In the open-air baths, including the all-cypress bath and the rock bath, you can fully enjoy the healing qualities of this famous spring while feeling the nature of Kujukuri.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity18people
A dry sauna heated by far-infrared heaters, characterized by its mild, comfortable warmth. Because the temperature is set relatively low, it is easy to breathe in, and you can warm your body deeply from the core over time. In the spacious room, you can relax while watching TV and enjoy a leisurely sweat.
Sauna TypeSalt Sauna
Capacity5people
A sauna where you apply the salt provided in the room to your body, helping to wash away dead skin cells along with perspiration and leave the skin smooth. It is ideal when you want to sweat more slowly than in a dry sauna, or when you want to focus on skin care. The experience, wrapped in moisture and gently loosening both body and mind, is especially appealing.
Water QualityTap Water
Capacity5people
A generously sized cold plunge bath located right near the sauna room. With a stable water temperature of around 18°C, it gently yet effectively cools down your heated body after sauna use. The water feels pleasant against the skin and supports a satisfying totonou experience that leads into a refreshing outdoor air bath.
Closed Days: None
299-4327 3445 Ichimatsu, Chosei Village, Chosei District, Chiba Prefecture
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