First, always carry your passport or a copy with you, as identification is sometimes required when entering certain places or checking into accommodations. Public transportation is very efficient, but using a T-money card or transportation app will make your journey easier. Be mindful of local etiquette: avoid speaking loudly on public transportation, and always show respect to elders. Tipping is not a common practice in Korea, so don’t feel obligated to tip in restaurants or taxis.

When using credit cards, make sure they are internationally accepted, especially outside major cities.
Also, note that trash bins are limited in public, so carrying a small bag for waste is helpful.

Weather can vary greatly by season, so check the forecast before packing—Korea’s summer can be humid, and winter quite cold.
Free public Wi-Fi is common, but having a SIM card or portable Wi-Fi can be more reliable for navigation and translation apps.