Hidden 1,300 meters above sea level in the mountains of Yamagata, Ubayu Onsen is one of Japan's most celebrated secret hot springs, accessible only from late spring through autumn. Operated for 17 generations by the historic Masugataya ryokan, the secluded retreat features milky turquoise mineral pools nestled dramatically beneath towering crags. With no cell service or urban intrusions, visitors cross a wooden suspension bridge to soak in total tranquility framed by maple forests. It is an unforgettable off-the-beaten-path sanctuary for those seeking an authentic, rustic alpine bathhouse experience.
- Mountain Retreat
- Scenic Views
- Nature
- Bath House
- Ryokan
- Onsen
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