The Jagalchi Fish Market is a (the?) major wholesale fish market in Busan, South Korea. We visited in the evening, and the streets were lined with stalls of fresh fish, shellfish, and, well, other things. When we visited again after dinner a couple of hours later the fish were all being packed up into Styrofoam crates to be shipped to retail markets and restaurants.
Most of the stalls were also set up to prepare the fish for you to eat there. Or, you can go indoors where there are rows and rows of restaurants, each serving just a handful of tables. The tables are next to, or in some cases surrounding, fountains flowing into baskets of live seafood. Take your pick and eat it a moment later.