I had time to visit a new neighborhood called Nampo-dong, a shopping area on the south side of Busan. Nampo-dong has both normal stores and street shopping stores (think real and fake Nike).
Nampo-dong also has an observation deck called the Yongdusan park tower, it cost three bucks to get up there.
On this particular Sunday there was a dance party at the base of the tower, I think every kid in the photo below are trying to become a Korean pop star.
Also outside the tower was a large bell.
If you visit Busan, getting from the airport to the Beach is really easy, you can use the KAL bus: