Pingxi has many rich coal mines; therefore, it was a primary target for air raids during World War II. In order to seek safety during air strikes, the oft-frightened residents dug five caves next to Guanyin Rock to build a community war shelter that can hold hundreds of people. The shelter is now obsolete and inadvertently becomes a tourist attraction. If you visit Pingxi, why not go inside the cave shelter and experience how it used to be during air raids?
External link: http://tour.ntpc.gov.tw/page.aspx?wtp=3&wnd=336&id=E1_382000000A_011605