Why has there been a big growth in tourism
Developments in technology
Better and more affordable transport
Online booking platforms
Opening more air routes around the world
The speed of travelling is much quicker
Faster and safer air travel
Larger planes to carry more people
More parts of the world are accessible to tourists
Causes cost of air travel to decrease
People in many countries earn more money
People have more disposable income 
Defined as the money that people have to spend after taxes and insurance have been taken off their gross income.
Basic holiday allowance has increased
Airbus A380
Motorways and railways can be used to travel quickly on land
More people own cars
They have greater freedom to choose when and where to travel to
More attractions can be developed
This increases the attractiveness of a place to potential tourists
More people have paid time off work for holidays and many people have more than one holiday per year.
More leisure time
Publicity is increasing
Television programmes and advertising make people more aware of how and where they can choose to spend their free time
The Internet makes it easier for people to search for and book holidays from home
More time to travel abroad
More choice of holiday destinations and many different types of holiday available
Lower costs of air fares
Introduction of budget airlines
Increase in life expectancy
Many people who are retired from work remain active
People are able to spend more on tourism
Increase in the choice of flight path
Physical attractions
Human attractions