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 linked to Busan Subway Line 2 and train stations on the Donghae Nambu railway line. From Wikipedia