As a Special Administrative Region of China, Hong Kong implements immigration policies different from mainland China. Below is a list of documents and relevant precautions that foreign tourists need to prepare when traveling to Hong Kong:
The passport must have at least 1 blank visa page.
Visa or Entry Permit
Visa Application Required: If your nationality is not on the visa-exempt list, you need to apply for a visa at Chinese embassies/consulates abroad or the Hong Kong Immigration Department.
Round-trip Ticket or Departure Proof
You must provide proof of leaving Hong Kong (airplane, train, or ferry tickets; electronic or paper versions are both acceptable).
Hotel Reservation or Accommodation Proof