The permanent galleries at Incheon Children's Science Museum require online reservations for a timed session. Individuals can book from 14 days ahead, while institutional groups can book from 120 days ahead. An individual reservation covers at most six visitors, and group visits operate on weekdays only; making several personal bookings to circumvent group rules is prohibited. Sessions last 120 minutes, without re-entry. Reserve a place for every person entering, including accompanying adults and infants. The Rainbow Village is for preschoolers and restricts access by school-age children, so plan siblings' routes carefully. Address: 21 Bangchuk-ro, Gyeyang-gu, Incheon; phone 032-456-2500.