If planning to take the KTX bullet train, make sure to buy tickets on the KTX Rail app or website in advance to secure a spot and choose seats, especially on weekends.

For local transportation, use Kakaofriends cards, which can be bought and reloaded with cash at convenience stores like 7-Eleven or at station reloading places.

When traveling on the KTX with family, it is recommended to book the facing seats with a table for a more pleasant experience.

If using a baggage delivery service for longer trips, pack essentials to carry with you as luggage may take a couple of days to arrive.

Allow extra time when traveling with luggage, especially when navigating subway stations, as finding elevators can be an issue.