Gwangju is a city in Gyeonggi Province, South Korea, a suburb southeast of Seoul. The city is not to be confused with the much larger Gwangju Metropolitan City, former capital of South Jeolla Province, South Korea.
Wikipedia https://en.wikipedia.org/wiki/Gwangju,_Gyeonggi
Coordinates 37°25'44.703" N 127°15'18.68" E