[9] Probably the most densely developed-up areas of the city are positioned in a number of slender valleys concerning the Nakdong as well as Suyeong Rivers, with mountains separating almost all of the districts. The Nakdong River is Korea's longest river and Busan's Haeundae Beach is also the state's major. https://lane9z208.blogofoto.com/67807909/an-unbiased-view-of-busan-summner-beach-festival