According to the official venue guide, the third-floor picnic room at Daegu Children's World lets visitors eat simple food brought from home. Hours are 09:30–17:30. Seats cannot be reserved or claimed in advance. Food delivery, cup noodles and instant-cook foods are prohibited, and hot water is not provided. Take leftovers away and clean your table.
Eating space is separate from bookings for the Kkumnuri activity hall. The latter requires its own admission ticket at KRW 4,000 per person, including every accompanying adult. Bring the required documents when claiming free or discounted entry. Picnic-room seating depends on actual conditions and is not guaranteed.
The venue is at 176 Dongdaegu-ro, Suseong-gu, Daegu. Check the official third-floor picnic-room information for food rules, and the Kkumnuri Hall admission page for ticket details, before visiting.