Relax and unwind in Kamisu with a salt-rich natural hot spring and sauna
Ibaraki Kamisu City
"Yu~port Hasaki" is a day-use hot spring facility in Kamisu City, Ibaraki Prefecture. Its greatest feature is its natural hot spring, which is rich in salt and excellent for retaining heat and moisture. In the sauna room, regularly generated hot steam encourages a pleasant sweat. In addition to the large indoor bath, you can also enjoy the natural hot spring in the open-air bath, which is a wonderful plus. The facility also has a spacious banquet hall, relaxation room, and massage room, so you can relax and unwind at your leisure after bathing.
TypeNatural Hot Spring
A sodium-chloride spring with an amber hue, gushing from 940m underground. This highly saline, strong-salt spring is less likely to leave you chilled after bathing and is also expected to help moisturize the skin. You can fully enjoy this rich blessing in both the large indoor bath and the open-air bath, where you can feel the outside air.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity14people
The humidity inside is kept at a comfortable level, and hot steam envelops your entire body. With powerful heat and a refreshing sensation, it is satisfying even for sauna enthusiasts who want to work up a serious sweat.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity3people
A cold plunge bath located right next to the sauna. It quickly cools down your body after heating up in the sauna, letting you enjoy a pleasant contrast in temperature. The clean tub also delivers excellent refreshing effects.
Closed Days: None
314-0255 Ibaraki Prefecture, Kamisu City, Sunayama 15
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
Relax and unwind in Kamisu with a salt-rich natural hot spring and sauna
Ibaraki Kamisu City
"Yu~port Hasaki" is a day-use hot spring facility in Kamisu City, Ibaraki Prefecture. Its greatest feature is its natural hot spring, which is rich in salt and excellent for retaining heat and moisture. In the sauna room, regularly generated hot steam encourages a pleasant sweat. In addition to the large indoor bath, you can also enjoy the natural hot spring in the open-air bath, which is a wonderful plus. The facility also has a spacious banquet hall, relaxation room, and massage room, so you can relax and unwind at your leisure after bathing.
TypeNatural Hot Spring
A sodium-chloride spring with an amber hue, gushing from 940m underground. This highly saline, strong-salt spring is less likely to leave you chilled after bathing and is also expected to help moisturize the skin. You can fully enjoy this rich blessing in both the large indoor bath and the open-air bath, where you can feel the outside air.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity14people
The humidity inside is kept at a comfortable level, and hot steam envelops your entire body. With powerful heat and a refreshing sensation, it is satisfying even for sauna enthusiasts who want to work up a serious sweat.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity3people
A cold plunge bath located right next to the sauna. It quickly cools down your body after heating up in the sauna, letting you enjoy a pleasant contrast in temperature. The clean tub also delivers excellent refreshing effects.
Closed Days: None
314-0255 Ibaraki Prefecture, Kamisu City, Sunayama 15
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