Masuda Onsen
- Location
- Masuda, Shimane Prefecture, Japan
- Water type
- bicarbonate
- Temperature
- 40 °C
- pH
- 8
Water profile
Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Soft water — natural, classic buoyancy.
Masuda Onsen is located in Masuda City, Shimane Prefecture, the southernmost city of this ancient San'in coast prefecture and a historic cultural center that preserves the legacy of the Masuda clan — patrons of Zen Buddhism who hosted the masters Sesshu (Japan's greatest ink painter) and Ikkyu in the fifteenth century, leaving an extraordinary heritage of medieval Japanese art and Buddhist culture in this small coastal city. The siliceous thermal waters here offer mineral spring bathing in a city where some of Japan's finest medieval garden art — including the Ikoji Temple garden attributed to Sesshu — survives in remarkably intact condition amid Masuda's quiet residential streets. Bathing at Masuda Onsen connects visitors to one of Japan's most underappreciated medieval art cities, where the intersection of Zen philosophy, garden craft, and hot spring culture creates a uniquely contemplative wellness experience.