The Celebration Day will include lots of 'taster' activities and crafts to try out as well as plenty of stalls offering information about what's on in Bristol.
Dr Tim Cockerill will reveal the secrets of the flea circus fleas pulling chariots, riding tricycles and even fighting duels with perfectly crafted miniature swords.
Join us in the schools room to build a minibeast hotel, go on a bug hunt on Brandon Hill and take a tour of the Natural History store to find out what we do behind the scenes.