Now the homestay industry is becoming more and more standardized. At present, people living in homestays and hotels all have one card, that is, people who stay need to provide ID cards and registration information.

Hangu is located in the middle of Beijing-Tianjin-Tangshan urban agglomeration, facing the vast plains of North China and Northeast China. It is located in the east of Tianjin, 50 kilometers east of Tangshan, 60 kilometers east of Qinhuangdao, 60 kilometers west of Tianjin, bordering Bohai Bay in the south and Ninghe District in the north. It is an important part of Tianjin Binhai New Area.