The area in Yongin where this school is located, called Suji-gu (Suji District), borders the Bundang area of Seongnam City. Seongnam is a large city of over 1 million people, and Bundang is the section famous for it's parks:
http://en.wikipedia.org/wiki/Bundang

The school is near Jukjeon Bus Stop and the next stop on the line is in Bundang. There is also a subway station in Jukjeon, the area of Suji-gu that the school is located in:
http://en.wikipedia.org/wiki/Jukjeon_Station