Enjoy a radium-rich free-flowing source spring in the streets of Ujina
Hiroshima Hiroshima City
A large natural hot spring spa facility located in Ujina Higashi, Minami Ward, Hiroshima City. Its signature features are the open-air source bath and rock bath, where a sodium-calcium chloride strong salt cold mineral spring containing slight radioactivity, drawn from deep underground granite strata, is served as free-flowing water without dilution. In addition, there is a wide variety of open-air baths, including a carbonated spring with strong blood circulation-promoting benefits, tsubo-yu, utatane-yu, and a neri-yu bath for women only. The indoor bath area includes silky baths with fine, silky bubbles, as well as a circuit bath equipped with jet baths and an electric bath, offering so many options that you will be spoiled for choice. With a spacious sauna room and a pleasantly cool cold plunge bath, it is designed so that everyone from families to serious sauna enthusiasts can relax and unwind all day long.
TypeNatural Hot Spring
The signature bath of Ujina Honoyu, where mineral-rich natural hot spring water is served as free-flowing water without dilution. This rare spring quality, a sodium-calcium chloride strong salt cold mineral spring containing slight radioactivity, offers excellent heat retention and skin-smoothing comfort.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity20people
A large sauna room with a spacious interior where you can relax at your own pace. Water is regularly poured onto the stones, releasing steam and encouraging perspiration in a comfortably humid environment. It is equipped with a TV, and has a calm atmosphere that makes it easy to stay for a long time without getting bored.
Water QualityTap Water
Capacity6people
A deep cold-water bath located near the sauna. Cold water constantly flows down from the upper part of the wall, and if you lean your back against the wall, you can enjoy a unique bathing sensation as the cold water runs down over your head like a shower. It tightens the body firmly, even more than the displayed temperature might suggest.
Closed Days: None
〒734-0003 3-4-34 Ujina Higashi, Minami Ward, Hiroshima City, Hiroshima 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
Enjoy a radium-rich free-flowing source spring in the streets of Ujina
Hiroshima Hiroshima City
A large natural hot spring spa facility located in Ujina Higashi, Minami Ward, Hiroshima City. Its signature features are the open-air source bath and rock bath, where a sodium-calcium chloride strong salt cold mineral spring containing slight radioactivity, drawn from deep underground granite strata, is served as free-flowing water without dilution. In addition, there is a wide variety of open-air baths, including a carbonated spring with strong blood circulation-promoting benefits, tsubo-yu, utatane-yu, and a neri-yu bath for women only. The indoor bath area includes silky baths with fine, silky bubbles, as well as a circuit bath equipped with jet baths and an electric bath, offering so many options that you will be spoiled for choice. With a spacious sauna room and a pleasantly cool cold plunge bath, it is designed so that everyone from families to serious sauna enthusiasts can relax and unwind all day long.
TypeNatural Hot Spring
The signature bath of Ujina Honoyu, where mineral-rich natural hot spring water is served as free-flowing water without dilution. This rare spring quality, a sodium-calcium chloride strong salt cold mineral spring containing slight radioactivity, offers excellent heat retention and skin-smoothing comfort.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity20people
A large sauna room with a spacious interior where you can relax at your own pace. Water is regularly poured onto the stones, releasing steam and encouraging perspiration in a comfortably humid environment. It is equipped with a TV, and has a calm atmosphere that makes it easy to stay for a long time without getting bored.
Water QualityTap Water
Capacity6people
A deep cold-water bath located near the sauna. Cold water constantly flows down from the upper part of the wall, and if you lean your back against the wall, you can enjoy a unique bathing sensation as the cold water runs down over your head like a shower. It tightens the body firmly, even more than the displayed temperature might suggest.
Closed Days: None
〒734-0003 3-4-34 Ujina Higashi, Minami Ward, Hiroshima City, Hiroshima 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