Seoul Metropolitan Subway Map

Link :

How to Use a Single Transportation Card

① Purchasing a Single Transportation Card

-Select the destination on the Transportation Card Vending/Recharging Machine, insert the payment (fare and deposit [KRW 500]) into the machine and receive the card.

② Getting on and off the Train

-Touch the transportation card to the card reader.

③ Refunding the Deposit

-After getting off the subway, insert the transportation card into the refund machine, and receive the deposit.