Seongsu-dong is currently the trendiest spot in Seoul, famous for pop-up stores and cafe tours. However, it's inconvenient to carry heavy bags into narrow cafes or stores. Utilize the lockers around Seongsu and Ttukseom Stations.
In addition to station lockers, private luggage storage facilities and unmanned lockers are increasing in the area. Since waiting times for pop-up stores can be long, it's best to store your bags first and enjoy your visit lightly.