Watching the Hanwha Eagles at Hanbat Stadium, Daejeon, Korea
The sports complex name in Korean is: 대전 한밭종합운동장). The complex includes a couple gyms, a large multi-purpose stadium for soccer and track and field activities, and more. The baseball stadium itself, in Hangul, is: 대전 한밭종합운동장 야구장.
Daejeon is about 150 kilometers south of Seoul, reached from Seoul Station on the KTX line in about an hour. It's the fifth-largest city in Korea, but there isn't too much to do in town. There are several surrounding mountains that are good for a hike, though.
Tickets for adults start at $7 for weekday games, $8 on the weekends, so it's very affordable, and despite its size it's still a pretty small ballpark in the end. The view of the field is nice and the fans are pretty good.