Premium free-flowing 100% natural hot spring
Fukushima Koriyama City
"Hotel Baden Baden Onsen" is a hot spring facility in Koriyama, Fukushima Prefecture, where day-use bathing is available. Its pride is a 100% natural free-flowing sodium chloride spring with no circulation at all, and the abundant volume of water speaks to its remarkable freshness. The far-infrared sauna is gentle on the skin and warms you thoroughly from the core. After the sauna, a refreshing cold bath awaits, luxuriously filled with well water and groundwater flowing in continuously. Cooling down in its mellow water is exceptional. It is a luxurious space where you can enjoy a full-fledged hot spring and a high-quality cold bath at the same time.
TypeNatural Hot Spring
A 100% natural free-flowing hot spring with no added water, no heating, and no circulation at all. The sodium chloride spring has a silky texture that clings to the skin and offers excellent heat retention. The baths overflow with abundant water, ensuring outstanding freshness and letting you experience the true power of the hot spring directly. With a variety of baths, including indoor, open-air, and outdoor baths, you can fully enjoy a blissful soak.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity10people
A sauna that gently warms your body from deep inside with far-infrared heat. The heat is soft, encouraging a comfortable sweat while minimizing damage to the skin and hair. The spacious room has a calm atmosphere, letting you spend relaxed time entirely at your own pace. Because it is less likely to feel stifling, it is also ideal for those who want to sweat thoroughly during a longer session.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity2people
A cold plunge bath filled with well water drawn up from underground and luxuriously left to flow continuously. The water quality is astonishingly soft, with a refreshing feel that gently envelops the skin. Fresh water constantly flows in, so cleanliness is excellent as well. You can feel the mellow quality unique to natural water within its crisp coldness, helping to calm and tighten the body after the sauna in a gentle yet effective way.
Closed Days: None
〒963-0112 Fukushima Prefecture, Koriyama City, Asaka-machi Narita Shimokawara 1-1
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
Premium free-flowing 100% natural hot spring
Fukushima Koriyama City
"Hotel Baden Baden Onsen" is a hot spring facility in Koriyama, Fukushima Prefecture, where day-use bathing is available. Its pride is a 100% natural free-flowing sodium chloride spring with no circulation at all, and the abundant volume of water speaks to its remarkable freshness. The far-infrared sauna is gentle on the skin and warms you thoroughly from the core. After the sauna, a refreshing cold bath awaits, luxuriously filled with well water and groundwater flowing in continuously. Cooling down in its mellow water is exceptional. It is a luxurious space where you can enjoy a full-fledged hot spring and a high-quality cold bath at the same time.
TypeNatural Hot Spring
A 100% natural free-flowing hot spring with no added water, no heating, and no circulation at all. The sodium chloride spring has a silky texture that clings to the skin and offers excellent heat retention. The baths overflow with abundant water, ensuring outstanding freshness and letting you experience the true power of the hot spring directly. With a variety of baths, including indoor, open-air, and outdoor baths, you can fully enjoy a blissful soak.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity10people
A sauna that gently warms your body from deep inside with far-infrared heat. The heat is soft, encouraging a comfortable sweat while minimizing damage to the skin and hair. The spacious room has a calm atmosphere, letting you spend relaxed time entirely at your own pace. Because it is less likely to feel stifling, it is also ideal for those who want to sweat thoroughly during a longer session.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity2people
A cold plunge bath filled with well water drawn up from underground and luxuriously left to flow continuously. The water quality is astonishingly soft, with a refreshing feel that gently envelops the skin. Fresh water constantly flows in, so cleanliness is excellent as well. You can feel the mellow quality unique to natural water within its crisp coldness, helping to calm and tighten the body after the sauna in a gentle yet effective way.
Closed Days: None
〒963-0112 Fukushima Prefecture, Koriyama City, Asaka-machi Narita Shimokawara 1-1
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