I just had my son's 4 year old birthday party at Lambs Farm in Libertyville. They have a new large roomy party room (indoors) and they set up a few fun games inside and space so that you can do your own things, too, if you want. It is still early enough to use the farm, too,if you like. They have a train that the families love, a petting animal area, a nature center inside, a jumping circle, miniature golf (for all ages)and just walking the paths to see the other animals. People were talking about the party for weeks after. We had so much fun. Most of our parties were at Pump it Up, so this was a nice change.