The World Tourism Organization defines tourism as people "traveling to and staying in places outside their usual environment for not more than one consecutive year for leisure and not less than 24 hours, business and other purposes."
The two types of tourism are domestic, where one travels within their own country, or international.
The global tourism industry incorporates many different industries such as hotels and holiday rentals, transport, travel companies, and attractions. In 2020, the global tourism industry contributed approximately 4.7 trillion US dollars to global GDP.
