In most cities, ticket demand is likely to exceed supply on weekends and during holidays, and so purchasing at least two weeks in advance is advisable. Tickets can be purchased at railway stations or travel agents. Long Distance Express Buses Fast and reliable highway bus services operate on expressways throughout the country, connecting all major cities. Two express bus terminals serve Seoul. The Tong Seoul Express Bus Terminal and the Nambu Express Bus Terminal are the other bus terminals.
Tickets go on sale from three days prior to departure.
The exchange rate is subject to fluctuation. Foreign bank notes and traveler's checks can be changed in the customs inspection area of the International Airports serving Seoul, Pusan and Cheju as well as at major hotels and banks. International credit cards such as Visa, Mastercard, American Express, Diners Club, and JCB are widely accepted at the major hotels, department stores and restaurants in the larger cities. You may be requested to show your passport. All three types can be used for both local and long distance calls.