Kusatsu Onsen

Kusatsu Onsen (草津温泉) is a hot spring resort located in Gunma Prefecture, Japan, northwest of Tokyo.

The small bathhouses that are free for both town residents and tourists are managed by the townspeople themselves.

[2] The springs were known as a resort for centuries, but they became well known after the water was recommended for its health benefits by Erwin von Bälz, a German doctor who taught medicine at Tokyo University.

[3] The locals claim the hot springs can cure all forms of ailments, other than lovesickness.

Guests have claimed that pain disappears while soaking in its hot water.