Alternating hot and cold bathing in a garden grand bath with four spring qualities and an overwhelming scale
Kagoshima Kirishima City
The Iodani Garden Grand Bath is a signature hot spring facility inside Kirishima Hotel in Makizonocho, Kirishima City. It receives an overwhelming volume of about 14 million liters a day from 14 springs, allowing guests to enjoy four different spring qualities at once: sulfur spring, alum spring, saline spring, and iron spring. The grand bath is divided into a women- and men-only dedicated zone, Otonoyu and Himenoyu, as well as a spacious mixed-gender free zone, with women-only hours at night. The men’s and women’s baths each come with a far-infrared sauna and a cold plunge bath fed with natural Kirishima spring water. By combining the sauna with alternating hot and cold bathing across the various hot spring waters, you can enjoy an exceptional therapeutic bathing experience.
TypeNatural Hot Spring
A natural free-flowing hot spring where four spring qualities emerge: sulfur spring, alum spring, saline spring, and iron spring. It features a variety of baths, including a standing bath boasting a maximum depth of 1.4m and a length of 25m, as well as baths hollowed out from shiina trees. With its overwhelming scale and abundant water volume, you can feel the energy of the earth with your whole body.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
A far-infrared dry sauna installed in each of the dedicated men’s and women’s baths, Otonoyu and Himenoyu. Set at around 90°C, it is a clean, well-kept space with sauna mats carefully laid from the seats to the backrests. There is no TV, creating a quiet environment where you can slowly enjoy the heat and sweating.
Water QualityNatural Water (Groundwater, Spring, etc.)
A cold plunge bath located just outside the sauna, using natural water from the Kirishima mountain range. Fresh water is constantly flowing through it, and the temperature is around 16°C to 18°C. The water is soft and smooth, making it ideal for a comfortable cooldown. In addition to the sauna, alternating hot and cold bathing with the hotter springs is also recommended.
Closed Days: None
3948 Takachiho, Makizonocho, Kirishima City, Kagoshima 899-6603
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
Alternating hot and cold bathing in a garden grand bath with four spring qualities and an overwhelming scale
Kagoshima Kirishima City
The Iodani Garden Grand Bath is a signature hot spring facility inside Kirishima Hotel in Makizonocho, Kirishima City. It receives an overwhelming volume of about 14 million liters a day from 14 springs, allowing guests to enjoy four different spring qualities at once: sulfur spring, alum spring, saline spring, and iron spring. The grand bath is divided into a women- and men-only dedicated zone, Otonoyu and Himenoyu, as well as a spacious mixed-gender free zone, with women-only hours at night. The men’s and women’s baths each come with a far-infrared sauna and a cold plunge bath fed with natural Kirishima spring water. By combining the sauna with alternating hot and cold bathing across the various hot spring waters, you can enjoy an exceptional therapeutic bathing experience.
TypeNatural Hot Spring
A natural free-flowing hot spring where four spring qualities emerge: sulfur spring, alum spring, saline spring, and iron spring. It features a variety of baths, including a standing bath boasting a maximum depth of 1.4m and a length of 25m, as well as baths hollowed out from shiina trees. With its overwhelming scale and abundant water volume, you can feel the energy of the earth with your whole body.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
A far-infrared dry sauna installed in each of the dedicated men’s and women’s baths, Otonoyu and Himenoyu. Set at around 90°C, it is a clean, well-kept space with sauna mats carefully laid from the seats to the backrests. There is no TV, creating a quiet environment where you can slowly enjoy the heat and sweating.
Water QualityNatural Water (Groundwater, Spring, etc.)
A cold plunge bath located just outside the sauna, using natural water from the Kirishima mountain range. Fresh water is constantly flowing through it, and the temperature is around 16°C to 18°C. The water is soft and smooth, making it ideal for a comfortable cooldown. In addition to the sauna, alternating hot and cold bathing with the hotter springs is also recommended.
Closed Days: None
3948 Takachiho, Makizonocho, Kirishima City, Kagoshima 899-6603
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