Before visiting Gwacheon National Science Museum, distinguish general permanent exhibitions from separately booked activities. Its official admission-fee page lists standard permanent-exhibition prices of KRW 4,000 for adults aged 20–64 and KRW 2,000 for children/youth aged 7–19. Under-sevens and people aged 65 and over are among the free-admission groups. Check the detailed conditions and identification required for any concession.
According to the official guide, normal permanent-exhibition admission does not require advance booking. However, educational sessions, special events, astronomy experiences and certain theatres may have their own timed tickets, reservations or extra charges. An admission ticket does not guarantee a place in a separately booked activity.
Before you go: (1) check ages and concession documents; (2) open the specific programme's reservation page; (3) check closures, gallery maintenance and sold-out notices for your date; and (4) allow time for transport, food and breaks. No live capacity or date-specific entry availability was checked.