Durban is the third-most populous city in South Africa after Johannesburg and Cape Town, and the largest city in KwaZulu-Natal. Durban forms part of the eThekwini Metropolitan Municipality, which includes neighbouring towns and has a population of about 4 million, making the combined municipality one of the largest cities on the Indian Ocean coast of the African continent. Durban was also one of the host cities of the 2010 FIFA World Cup.