The document discusses the tourism system and its key components. It describes the tourism system as consisting of three interrelated elements: tourists, geographical areas, and the tourism industry. The geographical areas include tourist generating regions, transit regions, and destination regions. The tourism industry comprises transportation, accommodation, ancillary services like activities and attractions, and sales/distribution. It also discusses factors that influence the tourism system like resources, technology, and government policies. Overall, the document provides a high-level overview of the tourism system and its basic elements and influences.