As a product of reform and opening up, Xiamen Airport was built in 1982. After more than 20 years of operation, there are currently 72 navigable cities, including 58 domestic cities and 4 international and regional cities/kloc-0. Passenger flow ranks in the forefront of Chinese mainland, among which international, Hong Kong, Macao and Taiwan tourists rank fourth in Chinese mainland for many years. Xiamen Gao Qi International Airport has become an important aviation hub connecting China (including Hong Kong, Macao and Taiwan), Southeast Asia, Japan and South Korea.