Douala (German: Duala) is the largest city in Cameroon, the capital of Cameroon's Littoral Region and the richest city in the whole CEMAC region of six countries. Home to Cameroon's largest port and its major international airport, Douala International Airport, it is the commercial capital of the country. Consequently, it handles most of the country's major exports, such as oil, cocoa and coffee, timber, metals and fruits. As of 2010 the city and its surrounding area had an estimated population that surpassed 3,000,000 inhabitants. The city sits on the estuary of the Wouri River and its climate is tropical.