Seolmundae Halmang Children's Hall switched to weekend and holiday walk-in registration on July 1, 2026. Sessions are 09:30–11:10, 11:30–13:10, 13:30–15:10, and 15:30–17:10, 100 minutes each, admitting up to 180 children, first come first served. Intended for children aged 13 months through second grade (born on or after January 1, 2018). Children and guardians must wear socks and up to two guardians can enter the play area. Weekday individuals can visit freely, but groups of 10+ must reserve.