Nonsan City's official Baekje Military Museum page states free entry, admission from 9 a.m. to 5:30 p.m. and museum viewing until 6 p.m. It closes Mondays, January 1, Lunar New Year's Day and Chuseok Day. The closing time does not extend the last-admission deadline.
All areas are non-smoking; food may not be brought inside and pets are barred except for guide dogs. Bicycles, inline skates and kick scooters are not permitted on outdoor visitor paths. Do not touch displays; flash, tripods, selfie sticks and commercial photography are prohibited.
Arrive before 5:30 p.m. if combining the museum with outdoor historic sites. The official inquiry number is 041-746-8432. Check separately for special closures and activity schedules.