Many of those were families, attracted partly by changes made for 2002 to get more young people back.
These include making the route of the procession shorter, and making sure that only bands for children and young people can take part.
Most of the children we spoke to were having a great time, and felt really at home.
Casey, nine, who'd been three times before, told CBBC Newsround Online that the stalls were better and that there was more to do. She was planning to stay till 7pm.