hot-spring resort; onsen town; spa town
A town or resort area known for its hot springs, often with traditional inns and bathhouses.
I went on a trip to a hot-spring town over the weekend.
This spa town has been known as a hot-spring cure resort since ancient times.
温泉街 refers to the hot-spring district or street within a town, often lined with inns and shops, whereas 温泉町 can refer to the entire town.
Compound of 温泉 (onsen, 'hot spring') and 町 (machi, 'town').