Okayama Okayama City
Equipped with two unique sauna rooms ('moimoi' and 'mökki') and two types of cold plunge baths (large indoor 'meri' and small outdoor 'pieni'), you can enjoy the sauna → cold water → rest loop. The interior harmonizes wood and water, with original aromas and frozen aroma ice balls (kugel) enhancing the scent and atmosphere, designed as a place to refresh both body and mind beyond the ordinary.
The main sauna characterized by its wavy bench design. Equipped with two stoves, one supports automatic löyly and the other allows for self-löyly. Enjoy the space with original aromas that provide both scent and heat. During aufguss events, you can enjoy the aromas of Ethiopian coffee beans, a blend of green tea and mint, and roasted green tea. The coffee bean löyly is particularly rare nationwide.
A sauna named meaning 'log cabin'. Designed for a small group to relax and enjoy the heat while watching the flickering flames of the wood pellet stove. Self-löyly is possible with daily changing aromas and frozen aroma ice balls (kugel).
A large indoor cold plunge bath. True to its name 'meri', meaning 'sea', it features a white and blue design that gives the impression of looking up from the seabed. Equipped with underwater speakers for an immersive experience.
A small outdoor cold plunge bath for one person. Water temperature is 8°C.
Ladies' Day and Mixed Gender Pair Day available (for details, check the official website's operating calendar)
Visited by the Editor-in-Chief
The Editor-in-Chief visited in person in October 2025
A Meticulously Crafted Sauna Experience from Another World
Read the full review
JAPAN'S FINEST ONSEN & SAUNA
The Finest Onsen & Sauna in Japan
57 SELECTIONS
Most of what we surveyed never even made it onto this site. This book is a further cut from what did. Our editor bathed in every onsen and sauna in it, and wrote only what they confirmed on the ground.
