First Things First
Google Maps isn’t accurate in Seoul. Download Naver
Map if you can read Korean, or Hanchao Map if you can read Simplified Chinese.
Download the helpful Subway Korea smartphone app.
Taxis are accessible and the drivers of black “international” taxis are supposed to understand basic English.
If you’re travelling on a Sunday, get to the airport three hours in advance or risk missing your flight owing to long queues. There are plenty of restaurants and shops to keep you occupied.