Why COEX is genuinely easy to get lost in
COEX Mall is one of Seoul's largest underground shopping and convention complexes, spanning a huge footprint with numerous connected sections, making it genuinely easy for first-time visitors to lose their bearings without a general navigation strategy.
Finding Starfield Library
This open, multi-story library installation sits at a central point within the mall and has become one of its most photographed features, generally easy to reach by heading toward the complex's central plaza area rather than any single specific entrance.
Locating the aquarium
COEX Aquarium operates as its own ticketed attraction within the broader mall complex, with clearly signed entrance points, and checking mall directory maps near any entrance helps orient you toward it without excessive backtracking.
Using the transit connections wisely
Because COEX connects to Samseong Station with multiple exits leading to different sections of the mall, checking which specific exit corresponds to your destination before surfacing, whether via a map app or station signage, saves considerable extra walking inside.
Useful Korean
Frequently asked questions
Is COEX Mall directly connected to the subway?
Yes, COEX Mall connects directly to Samseong Station, and the complex is large enough that choosing the right exit for your intended destination inside the mall genuinely matters, since some exits are a considerable walk from others.
Is Starfield Library free to visit?
Yes, this large open library space at the heart of the mall is free and open to browse and photograph, and it functions as both a public reading space and one of the mall's most recognizable landmarks.
How do I find the aquarium inside such a large complex?
The aquarium has its own clearly marked entrance and ticketing area within the mall, and following mall directory signage or a downloaded map is more reliable than trying to navigate purely by memory given the complex's size.
Official sources
Time-sensitive details were checked against the original sources below on 2026-08-28.