Haeundae District (Korean: 해운대구) is a district (gu) of Busan, South Korea. Haeundae has a population of about 423,000, the most populous district of Busan with 11.6% of the city population, and covers an area of 51.44 km² (19.86 sq mi) in eastern Busan. Haeundae became a division of Busan Metropolitan City in 1976 and attained the status of district in 1980. Haeundae is an affluent coastal community best known for Haeundae Beach, one of the most famous and popular beaches in South Korea, and attracts tens of thousands of tourists during summer. Haeundae is one of the wealthiest districts in South Korea, and has been subject to considerable commercial development in recent decades, including the Marine City and Centum City areas with their distinctive skyscrapers and high rise buildings.