Samdo Naval Command Headquarters at 27 Sebyeong-ro, Tongyeong, Gyeongnam preserves and reconstructs buildings from the Joseon-era naval command. A KTO page revised July 7, 2026 lists March–October opening 09:00–18:00 with last tickets 17:30, while November–February runs 09:00–17:30 with last tickets 17:00. Three accessible parking spaces and accessible toilets are also listed. The access checklist does not guarantee every traditional hall is step-free, so ask the heritage-site operator about specific entrances and temporary event diversions.