Hainan province. According to the Baidu map, Haikou Closed Loop Management Hotel is located in Lantian Road, Haikou City, Hainan Province. Haikou Closed-loop Management Hotel is a place used by Hainan Provincial Epidemic Prevention and Control Headquarters to isolate epidemic personnel. Daily nucleic acid detection report, local isolation for 7 days and foreign isolation for 14 days.