Having visited aquariums in various places of the world, including Sofia (Bulgaria), Exeter (England), Milwaukee (US), Berlin (Germany), etc., I was reluctant to see another aquarium. Still hot days won over, and we went to the aquarium in Seoul (COEX Mall) in order to escape the heat in air-conditioned spaces. I was pleasantly surprised by this place because it tries to stay very original and entertaining. COEX Aquarium pushes the limits when it comes to fish tanks and fish displays. Generally, it is a fun place to watch marine life.