Onsen saunas in Kumamoto, Japan
嘉島湯元水春
Suisyun is a hot-spring day spa inside AEON Mall Kumamoto in Kashima, just south-east of the city. Its spring-fed outdoor rock bath sits beside a high-temperature löyly sauna with auto-löyly every hour on the hour, a self-löyly meditation sauna in the men's bath, a moisture salt steam sauna in the women's bath, and a Finnish barrel sauna on the stone-bed terrace. The cold bath is kept near 15 °C and is 105 cm deep on the men's side. Open 9 AM (6 AM Sundays and holidays) to 1 AM.
城南天然温泉かたるの森
Katarunomori is a hot-spring bath and campsite in Jonan, in the south of Kumamoto city, reopened as a new complex after the old Jonan Tennen Onsen ryokan was damaged in the 2016 earthquake and closed. Its alkaline simple spring fills an indoor bath, an outdoor bath and private family baths, and the main bath has a wood-lined sauna with a self-löyly stove. Adult entry is ¥800. Open 9 AM to 10 PM, last entry 9 PM, closed Wednesdays unless a public holiday.
天然温泉 ばってんの湯
Batten no Yu is a natural hot-spring super sento near Ezu Lake in Higashi ward, run by the Kumamoto Spa Resort Group. Its main bath has nine kinds of hot-spring bath and a jacuzzi, with 15 private family baths in the main building and the Manyokan annex. Sauna-listing sites record a sauna and cold bath in both the men's and women's sides. Adult entry is ¥750, or ¥550 if you bring your own shampoo. Open daily 10 AM to 2 AM.
温泉カフェ あがんなっせ
Agannasse is a hot-spring day spa in Kita ward fed by Kikunan Onsen, a sodium chloride and bicarbonate spring billed as a 'beauty bath'. It has a löyly sauna where staff pour aroma water on the stones and fan the heat, a salt sauna in the women's bath, a Korean-style jjimjilbang and stone-bed area, an Asian-garden outdoor bath, and a barrel sauna that can be booked privately. Two-hour bath-only entry is ¥800 on weekdays. Open 10 AM to midnight; a relax-room refit runs until 6 December 2026.
湯らっくす
Yulax is a 24-hour natural hot spring and sauna house near Heisei station, known among Japanese sauna fans as the 'Holy Land of the West'. Men and women each have three saunas: a classic sauna with an Aufguss show every hour from noon to 1 AM, a near-dark meditation sauna and a steam-filled 'Great Aso eruption' sauna. The big cold bath runs on groundwater from 200 m down. Bath-only entry is ¥900 on weekdays and ¥1,000 at weekends; baths close 8 to 10 AM for cleaning.
湯月 Mifune Terrace
Yuzuki is the bathhouse of Mifune Terrace, a hotel, restaurant and bathing complex in Mifune town south-east of Kumamoto city, opened in 2022. It has three saunas, a self-löyly room around 80 °C, a dry sauna over 100 °C and a 40 to 50 °C steam room, plus a 'gokurei' single-digit cold bath below 10 °C next to a regular cold bath, a large indoor bath, an outdoor bath, a hot-spring source bath and family baths. Bath-only entry is ¥760 on weekdays and ¥810 at weekends. Open 5:30 AM to 11 PM.
嘉島湯元水春
Suisyun is a hot-spring day spa inside AEON Mall Kumamoto in Kashima, just south-east of the city. Its spring-fed outdoor rock bath sits beside a high-temperature löyly sauna with auto-löyly every hour on the hour, a self-löyly meditation sauna in the men's bath, a moisture salt steam sauna in the women's bath, and a Finnish barrel sauna on the stone-bed terrace. The cold bath is kept near 15 °C and is 105 cm deep on the men's side. Open 9 AM (6 AM Sundays and holidays) to 1 AM.
城南天然温泉かたるの森
Katarunomori is a hot-spring bath and campsite in Jonan, in the south of Kumamoto city, reopened as a new complex after the old Jonan Tennen Onsen ryokan was damaged in the 2016 earthquake and closed. Its alkaline simple spring fills an indoor bath, an outdoor bath and private family baths, and the main bath has a wood-lined sauna with a self-löyly stove. Adult entry is ¥800. Open 9 AM to 10 PM, last entry 9 PM, closed Wednesdays unless a public holiday.
天然温泉 ばってんの湯
Batten no Yu is a natural hot-spring super sento near Ezu Lake in Higashi ward, run by the Kumamoto Spa Resort Group. Its main bath has nine kinds of hot-spring bath and a jacuzzi, with 15 private family baths in the main building and the Manyokan annex. Sauna-listing sites record a sauna and cold bath in both the men's and women's sides. Adult entry is ¥750, or ¥550 if you bring your own shampoo. Open daily 10 AM to 2 AM.
温泉カフェ あがんなっせ
Agannasse is a hot-spring day spa in Kita ward fed by Kikunan Onsen, a sodium chloride and bicarbonate spring billed as a 'beauty bath'. It has a löyly sauna where staff pour aroma water on the stones and fan the heat, a salt sauna in the women's bath, a Korean-style jjimjilbang and stone-bed area, an Asian-garden outdoor bath, and a barrel sauna that can be booked privately. Two-hour bath-only entry is ¥800 on weekdays. Open 10 AM to midnight; a relax-room refit runs until 6 December 2026.
湯らっくす
Yulax is a 24-hour natural hot spring and sauna house near Heisei station, known among Japanese sauna fans as the 'Holy Land of the West'. Men and women each have three saunas: a classic sauna with an Aufguss show every hour from noon to 1 AM, a near-dark meditation sauna and a steam-filled 'Great Aso eruption' sauna. The big cold bath runs on groundwater from 200 m down. Bath-only entry is ¥900 on weekdays and ¥1,000 at weekends; baths close 8 to 10 AM for cleaning.
湯月 Mifune Terrace
Yuzuki is the bathhouse of Mifune Terrace, a hotel, restaurant and bathing complex in Mifune town south-east of Kumamoto city, opened in 2022. It has three saunas, a self-löyly room around 80 °C, a dry sauna over 100 °C and a 40 to 50 °C steam room, plus a 'gokurei' single-digit cold bath below 10 °C next to a regular cold bath, a large indoor bath, an outdoor bath, a hot-spring source bath and family baths. Bath-only entry is ¥760 on weekdays and ¥810 at weekends. Open 5:30 AM to 11 PM.