On Jeju Island, people speak standard Korean most of the time because there are a lot of tourists from the main land. There is also a special dialect on Jeju Island that people refer to as "Jeju-eo" or "Jeju language." It is so different from standard Korean that even native Korean speakers can't understand it! I wanted to live on Jeju island to learn the Jeju language. Wish me luck!
In South Korea, they use the Korean Won (₩). Each bill is a different size and color, and has a picture of an important figure in Korean history. 1000 Korean won is around $0.69 cents in U.S. currency.
A bottle of water usually costs around ₩1440, especially at the convenience store, which is approximately one U.S. dollar.
When I was in Cheong-ju City, I ate a food called bungeobbang for the first time. In english, the direct translation is "fish bread," but there is no fish in it. It is a street food pastry in the shape of a fish filled with either red bean paste or custard. It is crunchy on the outside and soft on the inside.