Busan is the 2nd largest city of South Korea and also the most famous for being a summer beach vacation destination.
But during summer, the beaches are usually over crowded and I don't go travelling in the summer as well. I came in autumn and the beaches were still filled with people. Despite being at the southern tip of the peninsular, it was still quite cold when I was there. Around 11 degC in midday. The windchill was the killer but it was compensated by the bright sun during the days I was there.
Also, this is my second time here and I mostly revisited many of the places I'd previously went. Including Gamcheon Culture Village, a.k.a. Korea's Santorini.
One new place I went was the Diamond Tower, it didn't hit my radar the first time I came. But this time round I went. It wasn't as nice a tower as Daegu's or Seoul's. But the cafe was nice.
Something new that didn't existed was the Haeeundae Blueline train. It started operating just before the pandemic and it's a short train ride between Songjeong beach and Mipo (near Haeeundae beach). Really meant for tourist as the route is also walkable. The first full day I was there, I walked the entire route. The last full day I was there, I took the train just for fun.
Walking on the beach in the cold weather was quite an experience. But it's a pity that the famous bridge -- Gwangan bridge -- lost most of its lights, making it not as good a photog subject.
There isn't much else I would do here with just 3 full days. I didn't eat their seafood as they were super expensive. I didn't go anywhere further than the main city centre because there isn't much interesting things to see.
I give Busan 4/5 stars.