Welcome to Zao Onsen — one of Japan’s oldest and most famous hot spring towns, nestled in the mountains of Yamagata Prefecture. Known for its sulfuric waters, scenic mountain views, and winter “snow monsters,” Zao is a perfect getaway for onsen lovers and outdoor enthusiasts alike.
The milky-blue waters of Zao are rich in sulfur, known for their strong acidity and skin-purifying effects. Many visitors praise its healing properties, especially for eczema, acne, and fatigue.
In winter, Zao’s mountain slopes are covered in “snow monsters” — frost-covered trees shaped by strong winds and snow. It’s a surreal, magical landscape that’s become an iconic winter attraction.
With over 15 kilometers of ski courses, Zao is a top ski destination in Japan. After a long day on the slopes, nothing beats soaking in a piping hot outdoor bath with snowy views.
Wander cobblestone streets, try local delicacies, and stop by free footbaths (ashiyu) scattered throughout the town. The nostalgic ambiance and mountain air are part of what makes Zao unforgettable.
Zao Onsen is accessible by train and bus from major cities:
