
Kids are the star of the show during the Central West End's Children's Costume Parade and Party. The parade begins at 11 a.m. followed by trick or treating at neighborhood businesses.
Children in their favorite costumes will be escorted by Cinderella and her carriage, clowns, face painters and more. Events take place at the corner of Maryland and Euclid.
After the parade, kids can trick or treat at participating businesses throughout the Central West End until 1 p.m.
A dog parade and party begins at 1 p.m. The adults-only Halloween party begins at 6 p.m.
More information: cwescene.com
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.
Stop in and have some fun in the indoor pool at the Lodge of Des Peres with your little one at this drop-in swim time for kids up to age 6. No pre-registration is needed; Water Waddlers is open to residents and non-residents of Des Peres.
The Saint Louis Science Center has expanded its Preschool Science Series to include new offerings for different age groups of young scientists. Storybook STEM is for ages 3 to 5.
LEGO Club at the St. Louis County Library is a free opportunity for kids to gather and have fun building with LEGO bricks. LEGOs are provided.
Explore the Saint Louis Zoo in the evenings at the Chinese lantern festival Animals Aglow! Animals Aglow returns to illuminate the Saint Louis Zoo for the second year with dozens of new, towering lanterns and light displays.