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Buy a T-money card at the airport or at a convenience store (CU, GS25, or 7-Eleven) and top it up with KRW 20,000–30,000 to get started.
T-money can be used on the subway and buses. On buses, tap your card when you board and tap it again when you get off.
You can top up your T-money at any convenience store or any subway station.
For more information, find at official homepage.

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AI-generated for reference. Visual details may differ.
If you need local mobile service on arrival, you can buy a prepaid SIM card or eSIM at the airport.
Major carriers include KT, SK Telecom, and LG U+
Not all ATMs accept overseas cards, so look for ATMs marked “Global.” It is also a good idea to carry a backup card and a small amount of cash.
For subway directions, we recommend Subway Korea (Apple | Google).
Google Maps has limited navigation functionality in Korea. For directions, Naver Map (Apple | Google) or Kakao Map (Apple | Google) is recommended.
For taxis, Uber Taxi (Apple | Google) works in Korea. You can also use k.ride (Apple | Google). At the airport, you may simply use the official taxi stand.

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