Just Between Lovers - Location

What are the locations with water scenes in the background in Just Between Lovers?  Many of the scenes either overlooking the water or on the waters edge seem to be too vast to be the Han river.   There are a few scenes with what appear to be commercial loading docks, small light houses, very long bridges, and maybe even a breakwater…where is this?  Incheon?

kura2ninja is correct. It was in Busan. 

Junho has mentioned that 1 of their film location was near bandmate Wooyoung's school. WY is from Busan.