Foreigners staying in hotels or guesthouses shall present their original identity documents to the hotel staff and register for temporary accommodation as required.
Foreigners visiting hotels or guesthouses shall register their visits as required.
Drug use, prostitution, whoring and fighting are all violations of Chinese law.
Emergencies
Foreigners who are involved in traffic accidents or emergencies shall call the following numbers for help promptly. The police and emergency centers are able to handle calls in English.
Police stations and duty points could be found in all sub-districts and busy roads of Guangzhou. The police stations are on duty and police cars patrolling 24 hours a day to deal with requests for help and perform the tasks assigned by 110 police hotline.
Source | Guangzhou Foreign Affair Office