Sainokawara Rotenburo

Sainokawara Rotenburo (西の河原露天風呂) is a massive open-air public bath located in the peaceful setting of Sainokawara Park in Kusatsu. This hot spring bath is one of the largest in Japan and can hold over 100 people at once, offering a relaxing soak in a natural outdoor atmosphere.

Surrounded by trees and mountain views, the bath transforms with each season. In autumn, vibrant red and yellow leaves create a colorful backdrop, while winter brings quiet, snow-covered scenery. It's the perfect place to unwind in nature while experiencing the beauty of Japan’s seasonal changes.