Gangnam Station has the highest floating population and is very complex with its underground mall, Shinbundang Line, and Line 2. Numerous lockers are installed both inside and outside the ticket gates, mostly operating with smart locker systems.
Gangnam Station is so large that we recommend taking a photo of the locker location after storing your items. Many people struggle to find their lockers later. The ones near Exit 11 are relatively easy to locate.