草津温泉
草津温泉は、日本の群馬県吾妻郡草津町草津界隈に所在する温泉である。草津白根山東麓に位置する。
毎分3万2300ℓ以上の自然湧出量は日本一。室町時代には有馬温泉や下呂温泉とともに「三名泉」とし、江戸時代には林羅山もこれらの三温泉を「天下の三名泉」と記した（日本三名泉）。 江戸時代後期以降何度も作られた温泉番付の格付では、当時の最高位である大関（草津温泉は東大関）が定位置であった。
Kusatsu Onsen is a hot spring resort located in Gunma Prefecture, Japan, northwest of Tokyo. It is a popular tourist destination.
There are 13 public baths at Kusatsu Onsen. The small bathhouses that are free for both town residents and tourists are managed by the townspeople themselves.
The source of its hot water is nearby Mount Kusatsu-Shirane and the appearance of the waters range from cloudy to clear, because the sources of the water that the baths rely upon are different.
The locals claim the hot springs can cure all forms of ailments. Guests have claimed that pain disappears while soaking in its hot water.