Maruo Onsen (Kirishima Onsen-kyo)
丸尾温泉（霧島温泉郷）まるおおんせん（きりしまおんせんきょう）
Milky sulfur baths and a sand bath at a Kirishima hotel open to day visitors
Day Use
YesOpen-air bath (rotenburo) Shiramurasaki-no-Yu (白紫乃湯): women's and men's sections. Closed Fridays (10:00-15:00), year-end/New Year, Golden Week, and Obon.
Adults ¥1,200 / elementary school students ¥600 / children (3+) ¥300. Sand bath (霧砂) is separate: day-use ¥2,500/adult. Private bath (山霧) additional fee. Last entry 14:00.
Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Sauna room of any kind
Cold water plunge bath, typically used after sauna
Bathing Arrangements
A private bath you can reserve for yourself or your group
Shared bathing area for all genders
Policies & Services
A restaurant or dining room open to visitors, not only meals for overnight guests
Shower, wash stations, soap and shampoo provided
Towels to rent or borrow at the desk
On-site or nearby parking available
Views
ForestHighlights
Sand Bath
Steam Sauna
GanbanyokuAbout
The bathing facilities at Kirishima Kokusai Hotel are open to day visitors as well as guests. The water is a milky white sulfur spring with a noticeable smell and a tendency to leave white mineral flakes on the skin (posted signs around the baths explain it's just natural deposits). There are open-air baths set among trees, a large indoor bath, a bedrock sauna (ganbanyoku, 岩盤浴), a steam bath, a cold bath, and a private reserved bath (kashikiri, 貸切風呂) for groups or families. A sand bath (sunayu, 砂むし温泉), the first of its kind in the Kirishima area, opened in June 2026 and has its own separate hours and entry.
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Last updated October 7, 2026