https://www.mofa.go.kr/eng/index.do

https://www.immigration.go.kr/immigration_eng/index.do

All visitors to Korea must have a valid passport and visa before coming.
Visitors from countries that have a special agreement with Korea are exempt from the visa requirement and allowed to stay in Korea without a visa for 30 days or up to 90 days, depending on agreements.
For more information, please contact the local Korean consulate or embassy, or visit the official website of the Korean Ministry of Foreign Affairs.