I want to join a tour group to South Korea.

There is basically no need to take the China delegation to South Korea in Korean, because the agency has arranged a Chinese-speaking tour guide. If you want to take a regular tour group out of the country, you must first obtain the national tour guide qualification certificate, and then call the travel agency or tour guide management center to get the tour guide certificate. After working for 2 years, you must take an exit tour guide certificate. At present, you must arrange a certified tour guide for the whole team to leave the country. Both the tour guide card and the tour guide card are tested once a year, so you should go to the local tourism bureau to register.