Goseong DMZ Museum itself is free, but accessing it requires paying admission to Unification Observatory and completing registration and security orientation. An October 2025 KTO guide lists 09:00–18:00 March–October, 09:00–17:00 November–February, closed Mondays.
Verify current entry, booking and fees with the official operator before visiting.
2026 works notice: The museum's official news board announces facility environment improvement works from August 18 through November 25, 2026 (100 days). Construction dates do not by themselves prove the entire museum is closed. Contact the museum to establish actual gallery, route and parking restrictions, and recheck military or weather-related Civilian Control Zone access before travel.