A natural radium hot spring bubbling up deep underground in Saijo, the city of sake
Hiroshima Hiroshima City
A day-use hot spring at the core of a comprehensive amusement complex in Saijo-cho, Misono-u, Higashi-hiroshima City, Hiroshima Prefecture, with a hotel, bowling alley, and game center all on site. Guests can enjoy a natural radium hot spring pumped up from 2,000 meters underground. It also features a sauna and a cold plunge bath. The open-air area has relaxation chairs for outdoor air bathing, and it has long served as a beloved local bath that has supported the lives of Saijo, the city of sake, and provided comfort to travelers. The main bath area alternates between the first bath and the second bath on a weekly Monday rotation for men and women.
TypeNatural Hot Spring
Natural radium hot spring water pumped from 2,000 meters underground is filled into every bath, and one of the major attractions is that you can soak in the source water in all of the more than seven baths, including the rooftop open-air bath, reclining bath, electric bath, bubble bath, Magnum bath, Hydro Maze bath, and the seasonal event bath.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity18people
A full-fledged dry sauna with a large gas far-infrared stove set in a spacious L-shaped, three-tier layout. It is equipped with a TV and a 12-minute clock, and the cleanliness of the white sauna mats, which are replaced regularly, is appealing. Despite the generous space, the heat builds well in the morning and helps bring on a good sweat.
Water QualityTap Water
Capacity8people
A spacious cold plunge bath located right next to the sauna room, large enough for eight people. Circulating cooling keeps the water consistently cold, allowing you to stretch out your legs and thoroughly cool down your body. Because there is plenty of room, it is nice that you can use it without waiting even when it is crowded.
Closed Days: None
〒739-0024 6179-1 Misono-u, Saijo-cho, Higashi-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
A natural radium hot spring bubbling up deep underground in Saijo, the city of sake
Hiroshima Hiroshima City
A day-use hot spring at the core of a comprehensive amusement complex in Saijo-cho, Misono-u, Higashi-hiroshima City, Hiroshima Prefecture, with a hotel, bowling alley, and game center all on site. Guests can enjoy a natural radium hot spring pumped up from 2,000 meters underground. It also features a sauna and a cold plunge bath. The open-air area has relaxation chairs for outdoor air bathing, and it has long served as a beloved local bath that has supported the lives of Saijo, the city of sake, and provided comfort to travelers. The main bath area alternates between the first bath and the second bath on a weekly Monday rotation for men and women.
TypeNatural Hot Spring
Natural radium hot spring water pumped from 2,000 meters underground is filled into every bath, and one of the major attractions is that you can soak in the source water in all of the more than seven baths, including the rooftop open-air bath, reclining bath, electric bath, bubble bath, Magnum bath, Hydro Maze bath, and the seasonal event bath.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity18people
A full-fledged dry sauna with a large gas far-infrared stove set in a spacious L-shaped, three-tier layout. It is equipped with a TV and a 12-minute clock, and the cleanliness of the white sauna mats, which are replaced regularly, is appealing. Despite the generous space, the heat builds well in the morning and helps bring on a good sweat.
Water QualityTap Water
Capacity8people
A spacious cold plunge bath located right next to the sauna room, large enough for eight people. Circulating cooling keeps the water consistently cold, allowing you to stretch out your legs and thoroughly cool down your body. Because there is plenty of room, it is nice that you can use it without waiting even when it is crowded.
Closed Days: None
〒739-0024 6179-1 Misono-u, Saijo-cho, Higashi-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