A visa is required for landing abroad, but no visa is required for landing in China.

The visa requirements for cruise ships are not exactly the same as those for land or air entry. Of course, visas for the departure and destination ports are at least required. Generally, when disembarking on the way, you only need the ship card and do not need to see your passport. In most countries, the official requirements for cruise entry are the same as those for land. The situations here include the need for a pre-visa, visa on arrival, visa-free or visa-free for group tours.

The original meaning of a cruise ship is a large passenger ship that sails on fixed routes and regularly on the ocean. The word "mail" itself has the meaning of transportation, and in the past, transoceanic mail was always carried by this large fast passenger ship, hence the name. ?

Cruise ships are one of the means of transport used exclusively by the postal department to transport mail, and they also transport passengers. Most cruise ships are for sightseeing purposes. Because in the early days of postal services, intercontinental postal services relied on postal ships to deliver letters and packages from one coast to the other. These British ships often had to fly the signal flag of the Royal Mail.