Certain geographic data restrictions are in effect in China. Data is changed by an algorithm that randomly shifts latitude and longitude coordinates for national security purposes. It is recommended to take this into account and independently verify the property's exact location. According to local authorities: From June 8, travellers entering Xiamen from outside of Fujian Province must register in the online pre-registration system as follows: Download the Fujian Provincial Service app (“Min Zheng Tong”), click the “iXiamen” mini-application, and then fill in relevant information on the “Registration for Entry Permit to Xiamen” page to get a personal “Health code”. Travellers must provide their Green Health Code to check in to hotels or any other accommodation in Xiamen.