The Children's Museum at Incheon National Maritime Museum offers free 50-minute sessions by advance online reservation. There are normally six departures starting at 10:00, 11:10, 13:20, 14:30, 15:40 and 16:50, with 50 people per session. About two weeks of reservations open at 09:00 on the 1st and 15th of each month. Guardians and infants under 36 months count toward the 50-person limit, and individual groups must bring one adult per four children. At entry, scan the QR code received after booking. Failure to enter within ten minutes of the session's start automatically cancels your place. Returned spaces are made available through online booking for a limited time; a physical stand-by queue is not offered. Strollers cannot enter the children’s museum and should be left in its designated area. Verify your actual slot online.