Taiwan has at least 100 hot springs, places where geothermally-heated water rises to the surface. Some of the springs are very sulphurous, others not; at least one is muddy. Different sources give different totals, perhaps because new hot springs occasionally appear and old ones dry up due to earthquakes. Almost all are in or up against the mountains.
Famous hot springs resorts include Guanziling in Tainan County, Beitou in Taipei City, Zhiben (Jhihben) in Taitung County, and Guguan in Taichung County.