Make sure your passport is current and will be valid for at least 3 months. Visas aren’t required to enter South Korea, but you will need your passport to re-enter your home country. If you have less than 3 months before the expiration date......
You’ll want to start on this early because it can take up to 8 weeks to receive your new passport. Even if you choose to pay the extra fee to have it expedited, it can still take 2-3 weeks to receive.
Spring and fall (April, May, June, and September, October, November) have mild weather that is typically sunny and dry. If you are traveling during these months, it should be pretty easy to pack with pants, short and long sleeve tops, and a light a jacket
Research airfare prices online to find the best deals. This is something else you will want to do well in advance. You can get the best prices on flights to Asia when tickets are purchased at least 90 days before your travel date.
You can buy traveler’s cheques or exchange money for South Korean Won (₩). You’ll want to keep some bills and coins on hand since some smaller merchants, or those in rural areas, may not accept traveler's cheques.
Most major credit cards are accepted in larger cities, but be aware that you may be charged a foreign transaction fee for using them.
Entry will cost you 8000₩ for adults, 4000-6000₩ for youth, and children under 6 years old are free.
Doota shopping mall and 10 Corso Como offer super-trendy shopping, while Namdaemun Market is home of the biggest traditional Korean market for local and handmade goods.