I live walking distance to Celebration Square and I have to admit this is the best use of a public facility for families, particularly those with young children.
Lots of events happening here on an almost daily basis - movie nights, celebrations, cultural events, announcements, concerts etc. There are food stands nearby, a water fountain (that becomes a public ice rink in the winter), benches for families to relax (have shisha, coffee, bbq). Best part is the astroturf grass - nobody gets hurt and the place stays clean. Public security is present also to keep things in order but have never seen any incident.
Just make sure to keep an eye on your kids because they will run around a lot. And remember to bring snacks, sun-tan cream and a football.