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 in your case, each individual couple metres is a seafood cafe with significant tanks bursting with species like Crab, Hagfish and Flounder. Check out https://erick7go30.ampedpages.com/summer-holiday-haeundae-for-dummies-63591651