Transportation
    •    Korea has a great subway system. Get a T-money card for easy travel.
    •    If you are visiting multiple cities, consider taking the KTX high-speed train or an airport bus.

Money Exchange
    •    Exchange money in Korea (for example, at Myeongdong exchange centers) for a better rate than at the airport.

Shopping
    •    Duty-free stores (Shilla, Lotte) offer great deals.
    •    Dongdaemun is the best place for trendy fashion at good prices.

SIM Card & Internet
    •    Chingu Mobile offers affordable short-term travel SIM cards.
    •    Unlimited data for 14 days costs about 20,000 KRW.

Best Time to Visit

Spring (March - May)
    •    Cherry blossom season, perfect for flower viewing and pleasant weather.

Autumn (September - November)
    •    Beautiful red and yellow autumn leaves, with cool and comfortable weather.

Winter (December - February)
    •    Ski season! Visit Gangwon-do for skiing and winter festivals.

Summer (June - August)
    •    Hot weather, but great for beach trips to Jeju Island and Busan.

Let me know if you need more details!