There is regular train service to Namwon on the Jeolla Line, which connects Seoul to Yeosu. The Saemaeul (Express) trains take 4 hours and cost W23,700 for first class and W19,600 for second class. The Mugunghwa trains run more frequently and take an additional half-hour. Seats cost W13,500 to W17,100.
Express buses are available to and from Seoul's Express Bus Terminal. They run about 17 times a day starting at 6am, and the last one departs at 10:20pm. The ride lasts just under 4 hours and costs W8,800 to W13,000. You can also catch an intercity bus from Jeonju (only 45 min. away), Gwangju, Daegu, and Hwaeomsa.
Local buses will take you pretty much anywhere you want to go, but be sure to check schedules and plan accordingly to avoid long waits. There are also taxis available to be flagged down on any street. Taxi drivers generally don't speak English, but if you tell them where you want to go, there shouldn't be a problem. Luckily, some of the main attractions in Namwon are within walking distance.
There is a small tourist information booth in front of the train station. Be sure to pick up a map and general information from the friendly staff, who speak pretty good English. You will also find a small tourist information booth at the Gwanghallu-won. The Namwon City Tourism Department can be reached at tel. 063/632-1771 or www.namwon.go.kr.