Of course, you understood correctly! 72-hour visa-free stay in Guangzhou is only possible for passengers arriving and departing from Baiyun Airport, Guangzhou City, subject to availability of air tickets for international flights and visas to a third country if required (for the following through Guangzhou transit) .Thus, if you arrive in Guangzhou with direct non-stop flights from Russia or Hong Kong, then go to a third country (not inside China) or go back directly to Russia, you do not need to open a Chinese visa, if you are planning to travel from Hong Kong to Guangzhou by bus or by train, then we should either pre-arrange an individual Chinese visa in Russia or obtain it at Hong Kong airport (not recommended due to the length and high cost of the clearance procedure) .