Kusatsu Onsen is famous as one of the major onsen resorts in Japan, located about 150 kilometers northwest of Tokyo at the south eastern foot of Mt. Kusatsu-Shiranesan, Gunma Prefecture. Kusatsu is a small town nestled in mountains where visitors can experience nature all year round. It welcomes more than three million tourists every year.
Kusatsu Onsen boasts the largest flowing water volume of all hot springs in Japan. The natural spring water of Kusatsu Onsen, which is one of Japan’s most acidic, kills almost all bacteria and microorganisms and has superior antibacterial power.
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