Bath
TypeNatural Hot Spring
A natural sodium bicarbonate hot spring. You can enjoy a variety of baths such as an open-air bath, walking bath, low-frequency bath, and negative-ion ceramic plate bath.
Daily-rotating saunas and abundant natural hot springs
Kumamoto Yamae Village
Yamae Onsen Hotaru is a comprehensive refresh facility located in Yamae Village surrounded by rich nature. The bath areas for men and women alternate daily and feature a far-infrared sauna and a mist sauna, paired perfectly with a groundwater-fed cold plunge bath. You can also enjoy a variety of 12 different baths including low-frequency baths and a negative-ion ceramic plate bath.
TypeNatural Hot Spring
A natural sodium bicarbonate hot spring. You can enjoy a variety of baths such as an open-air bath, walking bath, low-frequency bath, and negative-ion ceramic plate bath.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity16people
A far-infrared sauna available in the bath areas that alternate daily between men and women. Mats are replaced regularly, so you can work up a sweat in a clean environment.
Sauna TypeSteam Sauna
The mist sauna in the other bath area that alternates daily. It uses Binchotan charcoal and onsen steam, offering a gentle, skin-friendly sauna experience.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity4people
A deep cold plunge bath continuously fed by groundwater so the water is constantly overflowing. It delivers an invigorating, highly refreshing cooldown.
Closed Days: None
423 Manei Koko, Yamae Village, Kuma District, Kumamoto Prefecture 868-0091, Japan
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
Daily-rotating saunas and abundant natural hot springs
Kumamoto Yamae Village
Yamae Onsen Hotaru is a comprehensive refresh facility located in Yamae Village surrounded by rich nature. The bath areas for men and women alternate daily and feature a far-infrared sauna and a mist sauna, paired perfectly with a groundwater-fed cold plunge bath. You can also enjoy a variety of 12 different baths including low-frequency baths and a negative-ion ceramic plate bath.
TypeNatural Hot Spring
A natural sodium bicarbonate hot spring. You can enjoy a variety of baths such as an open-air bath, walking bath, low-frequency bath, and negative-ion ceramic plate bath.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity16people
A far-infrared sauna available in the bath areas that alternate daily between men and women. Mats are replaced regularly, so you can work up a sweat in a clean environment.
Sauna TypeSteam Sauna
The mist sauna in the other bath area that alternates daily. It uses Binchotan charcoal and onsen steam, offering a gentle, skin-friendly sauna experience.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity4people
A deep cold plunge bath continuously fed by groundwater so the water is constantly overflowing. It delivers an invigorating, highly refreshing cooldown.
Closed Days: None
423 Manei Koko, Yamae Village, Kuma District, Kumamoto Prefecture 868-0091, Japan
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