The National Yeosu Marine Meteorological Science Museum's official 2026 World Island Expo promotion runs from September 5 to November 4, 2026. Visitors qualify with any one of the following: a Yeosu World Island Expo admission ticket, a rail ticket arriving at Yeosu-Expo Station, an intercity-bus ticket arriving at Yeosu Bus Terminal, or an airline ticket arriving at Yeosu Airport. Present the qualifying ticket at the museum information desk for free museum entry. Each transport ticket admits one person. The notice specifies travel arriving in Yeosu, not tickets for departures from the city.
Regular opening hours are Tuesday through Sunday, 10:00–17:30, with ticketing ending at 17:00. The museum closes Mondays, January 1 and the main days of Lunar New Year and Chuseok; reconfirm substitute holidays. The promotion concerns museum admission and does not automatically waive booking requirements or fees for classes and special programs. Recheck the official notice and admission information before visiting.