In the western coastal areas of Taiwan, due to a large amount of over-pumped groundwater, the stratum subsidence is obvious in many areas. In the coastal bay area of ??southwestern Taiwan affected by over-pumped groundwater, most of the groundwater level has dropped below sea level, and there is a considerable degree of suspicion of seawater intrusion. If groundwater overexploitation is not improved, it may lead to continuous subsidence of the ground. The temples, cemeteries and roads in the photo have been surrounded by water.