English is broadly spoken, specially in the primary cities, but it is a great notion to take a Korean language course before you travel. https://docdoce.com/%EC%83%81%EC%9C%84%EC%95%8C%EB%B0%94-%EC%97%AC%EC%84%B1-%EA%B5%AC%EC%9D%B8%EA%B5%AC%EC%A7%81%EC%9D%98-%EC%83%88%EB%A1%9C%EC%9A%B4-%EC%8B%9C%EB%8C%80%EB%A5%BC-%EC%97%B4%EB%8B%A4/