A seaside spa with superb views of the Uwa Sea where you can enjoy Shioyu and an authentic sauna
Ehime Seiyo City
The Seiyo City Tourism and Exchange Facility Akehama-re is a seaside bathing facility in Akehama-cho, Seiyo City, Ehime Prefecture. It boasts an outstanding location with the Uwa Sea spreading out right in front of the building. Instead of a typical hot spring, the baths use Shioyu, seawater boiled to concentrate minerals, which is reputed to leave skin feeling silky smooth. Renovated to feel very clean, the facility offers an excellent sauna environment with a sauna room that smells of fresh wood, a deep cold plunge bath with a depth of over 110 cm, and an outdoor relaxation area where you can enjoy the sea breeze on fully flat reclining chairs.
TypeArtificial Hot Spring
Rather than a typical hot spring or plain hot water, the facility uses Shioyu, boiled seawater that is rich in minerals. It is said to leave skin feeling silky smooth after bathing. The bathing area is spacious, and large windows facing the sea let you enjoy views of the calm Uwa Sea while you soak.
Sauna TypeDry Sauna
Stove Typeelectric
A clean dry sauna with the scent of fresh wood. It uses a far-infrared electric heater and is set to a solid, authentic range of 90°C to 100°C, so you can really feel the heat. Pre-warming in the Shioyu before entering the sauna helps promote sweating thanks to the mineral components. The slightly dim, calming lighting allows you to focus on sweating.
Water Qualitytap
The water temperature is around 17°C, and the bath is notable for its great depth of 110 cm to 140 cm. You can stand and immerse yourself up to your shoulders, cooling your heated body quickly and evenly. After the cold plunge, head to the outdoor relaxation area where the sea breeze passes through. Lie back on a fully flat reclining chair for the ultimate relaxation time.
Closed Days: Wednesday
461-1 Takayama Ko, Akehama-cho, Seiyo City, Ehime 797-0201, Japan
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
A seaside spa with superb views of the Uwa Sea where you can enjoy Shioyu and an authentic sauna
Ehime Seiyo City
The Seiyo City Tourism and Exchange Facility Akehama-re is a seaside bathing facility in Akehama-cho, Seiyo City, Ehime Prefecture. It boasts an outstanding location with the Uwa Sea spreading out right in front of the building. Instead of a typical hot spring, the baths use Shioyu, seawater boiled to concentrate minerals, which is reputed to leave skin feeling silky smooth. Renovated to feel very clean, the facility offers an excellent sauna environment with a sauna room that smells of fresh wood, a deep cold plunge bath with a depth of over 110 cm, and an outdoor relaxation area where you can enjoy the sea breeze on fully flat reclining chairs.
TypeArtificial Hot Spring
Rather than a typical hot spring or plain hot water, the facility uses Shioyu, boiled seawater that is rich in minerals. It is said to leave skin feeling silky smooth after bathing. The bathing area is spacious, and large windows facing the sea let you enjoy views of the calm Uwa Sea while you soak.
Sauna TypeDry Sauna
Stove Typeelectric
A clean dry sauna with the scent of fresh wood. It uses a far-infrared electric heater and is set to a solid, authentic range of 90°C to 100°C, so you can really feel the heat. Pre-warming in the Shioyu before entering the sauna helps promote sweating thanks to the mineral components. The slightly dim, calming lighting allows you to focus on sweating.
Water Qualitytap
The water temperature is around 17°C, and the bath is notable for its great depth of 110 cm to 140 cm. You can stand and immerse yourself up to your shoulders, cooling your heated body quickly and evenly. After the cold plunge, head to the outdoor relaxation area where the sea breeze passes through. Lie back on a fully flat reclining chair for the ultimate relaxation time.
Closed Days: Wednesday
461-1 Takayama Ko, Akehama-cho, Seiyo City, Ehime 797-0201, Japan
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