A cruise ship or cruise liner is a passenger ship used for pleasure voyages, when the voyage itself, the ship's amenities, and sometimes the different destinations along the way, are part of the experience. Transportation is not the only purpose of cruising, particularly on cruises that return passengers to their originating port. Cruising has become a major part of the tourism industry. A cruise ship is a large ship with sleeping cabins and other facilities that takes people on holiday and vacation trips. Today's cruise ships are like floating hotels. They have a complete "hospitality staff" as well as the usual ship's crew.