Shimanto hot spring with a seawater open-air bath, natural hot spring, sauna and cold plunge bath
Kochi Shimanto City
Shimanto Iyashi no Yu is a hot spring facility in Shimanto City, Kochi Prefecture. Both the men's and women's bathing areas are equipped with a sauna and a cold plunge bath, so after working up a good sweat you can enjoy a refreshing cool-down in cold water. The facility's attractions include a natural alkaline simple hot spring, medicinal baths, and a rare seawater open-air bath. Day-use bathing is available as well as overnight stays, allowing you to spend a relaxing, restorative time.
Typeunknown
The facility uses a natural alkaline simple hot spring. It employs a circulation and filtration system and features a smooth, skin-friendly texture. The water warms the body from the core, and a pleasant warming sensation continues after bathing.
Typeunknown
A rare outdoor seawater open-air bath. In an open, liberating space you can soak while feeling the outside air. Depending on the season you may also enjoy views such as cherry blossoms, enhancing relaxation.
Typeunknown
An indoor medicinal bath. Surrounded by its distinctive aroma, you can soak deeply and experience a different kind of relaxation effect from the natural hot spring.
Closed Days: None
〒787-0155 3363 Shimoda, Shimanto City, Kochi Prefecture, 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
Shimanto hot spring with a seawater open-air bath, natural hot spring, sauna and cold plunge bath
Kochi Shimanto City
Shimanto Iyashi no Yu is a hot spring facility in Shimanto City, Kochi Prefecture. Both the men's and women's bathing areas are equipped with a sauna and a cold plunge bath, so after working up a good sweat you can enjoy a refreshing cool-down in cold water. The facility's attractions include a natural alkaline simple hot spring, medicinal baths, and a rare seawater open-air bath. Day-use bathing is available as well as overnight stays, allowing you to spend a relaxing, restorative time.
Typeunknown
The facility uses a natural alkaline simple hot spring. It employs a circulation and filtration system and features a smooth, skin-friendly texture. The water warms the body from the core, and a pleasant warming sensation continues after bathing.
Typeunknown
A rare outdoor seawater open-air bath. In an open, liberating space you can soak while feeling the outside air. Depending on the season you may also enjoy views such as cherry blossoms, enhancing relaxation.
Typeunknown
An indoor medicinal bath. Surrounded by its distinctive aroma, you can soak deeply and experience a different kind of relaxation effect from the natural hot spring.
Closed Days: None
〒787-0155 3363 Shimoda, Shimanto City, Kochi Prefecture, 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