Haeundae District is a gu in eastern Busan, South Korea. It has an area of 51.44 km², and a population of about 423,000. This represents about 11.6% of the population in Busan. It became a division of Busan in 1976 and attained the status of gu in 1980. Haeundae-gu can be reached easily on the subway, Busan Subway Line 2, or by train on the Donghae Nambu railway line from outside of Busan. Both Haeundae subway and train stations are built adjacent to each other.