Indian Ocean and Dubai (UAE). Chinese companies have made investments in several Indian Ocean ports, including Gwadar, Hambantota, Colombo and Sonadia. This has sparked a debate about the strategic implications of these investments. Small islands dot the continental rims. Island nations within the ocean are Madagascar (the world's fourth largest island), Bahrain, Comoros, Maldives, Mauritius, Seychelles and Sri Lanka. The archipelago of Indonesia and the island nation of East Timor border the ocean on the east. Heading roughly clockwise, the states and territories (in italics) with a coastline on the Indian Ocean (including the Red Sea and Persian Gulf) are: Africa Asia
Colombo Colombo Colombo (; , ; , ) is the commercial capital and largest city of Sri Lanka. According to the Brookings Institution, Colombo metropolitan area has a population of 5.6 million, and 752,993 in the city proper. It is the financial centre of the island and a popular tourist destination, and was also described as a city of sights and cities. It is located on the west coast of the island and adjacent to the Greater Colombo area which includes Sri Jayawardenepura Kotte, the legislative capital of Sri Lanka and Dehiwala-Mount Lavinia. Colombo is often referred to as the capital