Bath
TypeNatural Hot Spring
A natural hot spring classified as a sodium bicarbonate-chloride spring. Facilities are well equipped, including outdoor baths, a jet bath, and a women-only silky bath.
1.2m-deep vibra cold plunge bath (men's bath)
Kumamoto Mashiki Town
The day-use hot spring Shichifuku no Yu attached to Aso Kumamoto Airport Hotel Eminence. The dimly lit, calm sauna room is equipped with two far-infrared heaters, providing a solid, intense heat. In particular, the men's bath features a 1.2m-deep cold plunge bath with vibra (bubbling jets), where the soft water of Aso combines to deliver an exceptional cooldown experience.
TypeNatural Hot Spring
A natural hot spring classified as a sodium bicarbonate-chloride spring. Facilities are well equipped, including outdoor baths, a jet bath, and a women-only silky bath.
Sauna TypeDry Sauna
Stove Typefar_infrared
Capacity25people
A spacious dry sauna equipped with far-infrared heaters. With black-painted walls and subdued lighting, you can relax and sweat comfortably.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity5people
A deep 1.2m cold plunge bath exclusive to the men's bath. It features vibra (bubbling jets), and with Aso's soft water you are cooled down intensely across your whole body.
Closed Days: None
2071-1 Tahara, Mashiki Town, Kamimashiki District, Kumamoto Prefecture 861-2202, Japan
Gender Access
Mixed Gender

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
1.2m-deep vibra cold plunge bath (men's bath)
Kumamoto Mashiki Town
The day-use hot spring Shichifuku no Yu attached to Aso Kumamoto Airport Hotel Eminence. The dimly lit, calm sauna room is equipped with two far-infrared heaters, providing a solid, intense heat. In particular, the men's bath features a 1.2m-deep cold plunge bath with vibra (bubbling jets), where the soft water of Aso combines to deliver an exceptional cooldown experience.
TypeNatural Hot Spring
A natural hot spring classified as a sodium bicarbonate-chloride spring. Facilities are well equipped, including outdoor baths, a jet bath, and a women-only silky bath.
Sauna TypeDry Sauna
Stove Typefar_infrared
Capacity25people
A spacious dry sauna equipped with far-infrared heaters. With black-painted walls and subdued lighting, you can relax and sweat comfortably.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity5people
A deep 1.2m cold plunge bath exclusive to the men's bath. It features vibra (bubbling jets), and with Aso's soft water you are cooled down intensely across your whole body.
Closed Days: None
2071-1 Tahara, Mashiki Town, Kamimashiki District, Kumamoto Prefecture 861-2202, Japan
Gender Access
Mixed Gender

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