As the biggest seaport in Korea, Busan has an abundance of seafood. Significantly, if you prefer your fish then Busan is going to be a playground for you, each couple of metres is really a seafood restaurant with large tanks bursting with species like Crab, Hagfish and Flounder. Check out https://busan-night-activities54442.isblog.net/the-definitive-guide-to-summer-holiday-haeundae-53786875