OK, it's not in the park, and it's May 20th not the fourth of July, but it is Chicago!
If you're in the Chicago area, come see us at SharePoint/Cloud Saturday in Chicago suburbs on May 20 2017. IceFire will have a booth to show the latest PointFire features, and Martin Laplante of IceFire will give a talk.
If you're in Atlanta on June 17 2017, join us at SharePoint Saturday Atlanta. Again, a booth and a talk.
If you're in New York City on July 29 2017, join us at SharePoint Saturday NYC. Again, a booth and a talk.