The National Nakdonggang Institute is open 9:30 a.m.–5:30 p.m., with last entry at 5 p.m. General tickets are KRW 3,000 for ages 19–64 and KRW 2,000 for ages 5–18. For groups of 20 or more, the respective rates are KRW 2,000 and KRW 1,500. A ticket kiosk is to the left of the Biological Nuri Hall entrance.
The institute lists a 50% concession for Sangju residents and for families with two or more children whose youngest is 18 or younger. Children aged four or younger and people 65 or older enter free. Bring proof of eligibility and verify whether multiple concessions can be combined.
The optional 4D theater costs a separate KRW 1,000, with 30 seats per screening. Babies under 36 months sharing an adult's seat enter the 4D program free. Check showtimes, tickets and temporary closures separately.