Macau is located in Guangdong province, on the western bank of the Pearl River Delta, at latitude 22º 14º North, longitude 113º 35º East and connected to Gongbei District by the Border Gate (Portas do Cerco) isthmus.

The Macau Special Administrative Region has an area of 31.3 sq. km, comprised of the Macau Peninsula 9.3 sq. km and connected to Mainland China), the islands of Taipa (7.4 sq. km) and Coloane (7.6 sq. km) and the reclaimed area COTAI (5.6 sq. km). Three bridges connect Macau to Taipa (one of them is 2.5km long, the other one is 4.5 km long and the third one is 2.2 km long).

Besides the Border Gate (Portas do Cerco) - the visitor can access Mainland China through the COTAI Frontier Post. Immigration and Customs is located in the reclaimed area between the islands of Taipa and Coloane.

Macau is eight hours ahead of Greenwich Mean Time.