COEX Aquarium is one of the largest aquariums in Korea, with more than 180 display tanks and 90 breeding tanks, holding a total of 3,000 tons of water, displaying the astonishing diversity of aquatic life around the world across a series of 14 thematic discovery areas, from the heights of the mountains From the Andes to the depths of the Amazon rainforest, in ecosystems ranging from rivers, swamps to the deep sea, this aquarium offers new exhibits and cultural performances every season, including the unique "Sardine Performance".