Check this before you book a flight. Ordinary-passport holders from 50 countries can enter visa-free for up to 30 days for tourism, business, family visits or transit: Andorra, Austria, Belgium, Bulgaria, Croatia, Cyprus, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Luxembourg, Malta, Monaco, Montenegro, the Netherlands, North Macedonia, Norway, Poland, Portugal, Romania, Russia, Slovakia, Slovenia, Spain, Sweden, Switzerland, the United Kingdom, Australia, New Zealand, Argentina, Brazil, Canada, Chile, Peru, Uruguay, Bahrain, Brunei, Japan, Kuwait, Oman, South Korea and Saudi Arabia. For most of these countries the exemption runs to 31 December 2026, so check the NIA list if you travel later. The United States is not on it.
Citizens of 57 countries, the United States among them, can instead use the 240-hour (10-day) visa-free transit, with an ordinary passport and a confirmed onward ticket to a third country or region (not China, and not the place you came from). Entry is through one of 65 ports in 24 provinces, and you may travel between the permitted areas, so Foshan and a train to Guilin are fine. Guangzhou Baiyun airport is on the port list, and the Pazhou passenger port and Hong Kong West Kowloon station were added from 5 November 2025; confirm your port on the NIA page. Hong Kong counts as a separate region, so it can be your onward destination, but Hong Kong to Guangzhou and back is not transit. Other nationalities need a visa or a bilateral exemption. Fill in the free online arrival card on the official NIA page before you land.