COEX is a large convention and exhibition center located in Seoul, South Korea. It serves as a hub for various events, including trade shows, conferences, and cultural exhibitions. The facility features multiple halls, meeting rooms, and a shopping mall, making it a popular destination for both business and leisure activities. In addition to its event spaces, COEX is home to the COEX Aquarium, one of the largest aquariums in South Korea. The center is also connected to the COEX Mall, which offers a variety of shops, restaurants, and entertainment options, enhancing the overall visitor experience.