• Subway Guide
• Updated Nov 2026
• 2 min read

Nobody tells tourists these. Now you know.

3 Secret Rules of the Seoul Subway

The Seoul subway is clean, fast, and surprisingly quiet. It also runs on a few rules nobody tells you about. Here are the three every visitor should know.

1. 1The pink seat is not for you (probably)

   

   Photo: Seoul Metropolitan Government (Mediahub Seoul) · KOGL Type 1

   Most Seoul subway cars have pink seats, often with a pink floor, reserved for pregnant passengers. Even when the train is packed and the pink seat is empty, most locals leave it alone. Yes, really.

   

   Pro tip: Spot a small pink badge on someone's bag? It means they're pregnant, even if you can't tell yet. Stand up and offer your seat. Instant local legend.

   Photo: Seoul Metropolitan Government (Mediahub Seoul) · KOGL Type 1

2. 2The great escalator debate

   

   The official signs say: hold the handrail and don't walk. In real life, many people stand on one side so others can rush past on the other. Koreans are still arguing about which way is right, and the "walk or stand" question keeps coming back in the news.

   Pro tip: Can't decide? Just stand still and hold the handrail. You can't lose an argument you're not in.

3. 3The lost-and-found that never sleeps

   

   Photo: Seoul Metropolitan Government (Mediahub Seoul) · KOGL Type 1

   Every year, well over 100,000 items get left behind on the Seoul subway. Here's the surprising part: most of the lost cash that gets turned in actually makes it back to its owner. Some lines even offer delivery of lost items to your door (you pay the shipping).

   Pro tip: Lost something? Note the time, the car number, and where you sat, then tell the station staff right away. Speed is everything.

Think you'd survive a week in Seoul?

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Play: Can You Survive 7 Days in Seoul? Or read: Don't Press the Red Button: The Korean Bathroom Guide