Your family is invited to join the friendly ghosts and howling goblins at the free Halloween Hoopla.
This free event is designed to kick off your Halloween trick or treating and is for all ages. There will be the Bubble Bus, games, lots of kids activities and fun for all. Bring your little pumpkins to Frontier Park in St. Charles, where the fun will be set up between the Jaycee Stage and Katy Depot. Free and open to all. No reservations are necessary.
3 to 6 p.m. on Wednesday, Oct. 31.
More information: stcharlesparks.com
The Saint Louis Chess Club is offering free group chess instruction to kids and teens at various branches of the St. Louis County Library.
The History Clubhouse at the Missouri History Museum has reopened for one-hour play sessions by reservation. The award-winning History Clubhouse is an interactive space designed for children and families with lots of hands-on experiences showcasing state and local history.
Visit the James S. McDonnell Planetarium in Forest Park and see a star show to experience the largest artificial sky in the Western Hemisphere. Star shows are lead LIVE by one of the Planetarium's educators, creating a new and tailored experience for every audience.