Pusan is one of the few places that I have absolutely no desire to return to. I was there in 1986, and was very disappointed. It was one of the only places in the world where I felt very uncomfortable and unwelcome as a traveller – it was a pretty universal feeling in Pusan. (I’m not saying Korea, in general, is the same, I had a fine time in Seoul, however Pusan in particular did not work for me)