This price also includes: business class airfare to and from the origin port; a stay at a hotel the night before your cruise takes off, as well as a welcome gala; transportation between your airport, hotel, and the ship; excursions of 7 World Wonders; a deluxe beverage package; laundry services; gratuities; and Wi-Fi and steaming. 

The boat itself grants guests access to: a spa and fitness center, stores, original productions, several dining options, children’s programs, pools, mini golf, wine tastings, rock climbing, parties, and more. (Some of these come with additional prices.)

Source: https://www.buzzfeed.com/alexalisitza/reactions-royal-caribbean-9-month-cruise