Kids should wear their favorite costumes for this fun, free Halloween parade and party at the playground in Lafayette Park. Everyone is welcome.
5:30 p.m. on October 31 at the Lafayette Park Playground. Free.
More information: lafayettesquare.org
Explore the St. Louis Zoo after dark at Boo at the Zoo. Bring your little ghouls and goblins to this non-scary celebration designed just for kids. Though this is not a trick-or-treating experience, costumes are encouraged, and each child 12 and under will receive a treat bag when they leave.
Engage your young scientist in science-related learning at the Saint Louis Science Center's Preschool Science Series. Through interactive stories and hands-on exploration, children learn about science, as well as language, problem-solving and social skills.