Miyazaki Saito City
Completely free-flowing source spring! Supreme hot spring and sauna that merge with Saito's sky
Located at the foot of the Saitobaru Kofun Cluster, Tsumayu is a day-use hot spring facility that prides itself on completely free-flowing water from the source with no reheating or added water. The colorless, transparent sodium bicarbonate hot spring yields 300 L per minute, is gentle on the skin, and is also drinkable. Sauna enthusiasts will love it: a spacious hinoki cypress–scented sauna room reaches over 90°C on the top bench, providing an intense heat. After the sauna you can take a plunge into the huge groundwater-fed cold plunge bath that can hold around 15 people. Enjoy open-air relaxation while gazing at the beautiful garden and Saito's wide sky, plus floatation bathing in the 30°C low-temperature bath—everything here offers extraordinary scale and restorative comfort.
A sodium bicarbonate (bicarbonate) hot spring (weakly alkaline) gushing from a depth of 1483 m. The spring temperature is 46.1°C, and the water is delivered as a completely free-flowing source with no reheating or added water. Enjoy vast indoor baths, an open rock bath that connects seamlessly to the garden, and semi-open baths that let you feel the breeze—large-scale bathing facilities where you can savor this ancient water.
A large far-infrared dry sauna that comfortably accommodates 20–30 people with a pleasant hinoki cypress aroma. It has three-tiered benches, and the top bench is set at a robust high temperature exceeding 90°C. Thoughtful touches include two types of dedicated sauna mats: one for feet and one for sitting.
Tuesday
Miyazaki Saito City
Completely free-flowing source spring! Supreme hot spring and sauna that merge with Saito's sky
Located at the foot of the Saitobaru Kofun Cluster, Tsumayu is a day-use hot spring facility that prides itself on completely free-flowing water from the source with no reheating or added water. The colorless, transparent sodium bicarbonate hot spring yields 300 L per minute, is gentle on the skin, and is also drinkable. Sauna enthusiasts will love it: a spacious hinoki cypress–scented sauna room reaches over 90°C on the top bench, providing an intense heat. After the sauna you can take a plunge into the huge groundwater-fed cold plunge bath that can hold around 15 people. Enjoy open-air relaxation while gazing at the beautiful garden and Saito's wide sky, plus floatation bathing in the 30°C low-temperature bath—everything here offers extraordinary scale and restorative comfort.
A sodium bicarbonate (bicarbonate) hot spring (weakly alkaline) gushing from a depth of 1483 m. The spring temperature is 46.1°C, and the water is delivered as a completely free-flowing source with no reheating or added water. Enjoy vast indoor baths, an open rock bath that connects seamlessly to the garden, and semi-open baths that let you feel the breeze—large-scale bathing facilities where you can savor this ancient water.
A large far-infrared dry sauna that comfortably accommodates 20–30 people with a pleasant hinoki cypress aroma. It has three-tiered benches, and the top bench is set at a robust high temperature exceeding 90°C. Thoughtful touches include two types of dedicated sauna mats: one for feet and one for sitting.
Tuesday
Located immediately outside the sauna, this oversized cold plunge bath easily fits 10–15 people. It uses groundwater and stays at a mild temperature around 20°C, making it approachable even for those new to cold plunges and allowing a slow, extended cool-down after a high-temperature sauna.
An approximately 30°C low-temperature hot spring in the open-air area. After the cold plunge, alternating between the cold plunge and this cool bath—or floating while resting to achieve totonou—is highly praised by sauna enthusiasts and is a hidden specialty of the facility.
Located immediately outside the sauna, this oversized cold plunge bath easily fits 10–15 people. It uses groundwater and stays at a mild temperature around 20°C, making it approachable even for those new to cold plunges and allowing a slow, extended cool-down after a high-temperature sauna.
An approximately 30°C low-temperature hot spring in the open-air area. After the cold plunge, alternating between the cold plunge and this cool bath—or floating while resting to achieve totonou—is highly praised by sauna enthusiasts and is a hidden specialty of the facility.
