Downloadable mobile applications for retrieving and displaying information in the fields of travel, entertainment, and education, to enable cruise ship passengers to make dining, spa, theater, and cultural activity reservations, to select and purchase shore excursions and tours, to learn about daily activities and onboard entertainment and education events and resources, lounges and restaurants, to learn about onboard art, to learn about ports of call, to obtain information about their travel plans and manage their trips, travel plans, bookings, reservations and accommodations, and to communicate directly with their travel company