Hong Kong International Airport is the main airport in Hong Kong. It is colloquially known as Chek Lap Kok Airport (赤鱲角機場), being built on the island of Chek Lap Kok by land reclamation, and also to distinguish it from its predecessor, the closed Kai Tak Airport. The airport opened for commercial operations in 1998, replacing Kai Tak, and is an important regional trans-shipment centre, passenger hub and gateway for destinations in Mainland China (with over 40 destinations) and the rest of Asia.