Coex Aquarium, one of the largest aquariums in South Korea, houses 40,000 sea creatures from 650 different species. It is divided into six themed areas, namely the Inca Empire, Amazonian World, Seven Seas, Ocean Kingdom, Marine Touch, and Undersea Tunnel. There are also 14 discovery zones that will take you on a water journey from the high Andean mountains to the Amazon tropical rainforest to rivers and swamps to the depths of the ocean.