Pirates and Pumpkins Trick or Treat Nights at The St. Louis Aquarium at Union Station

The Preschool Science Series is an open exploration learning lab for young scientists - ages 18 months to 5 years - and their families. Activities are designed around research that shows children learn best through play, inquiry and shared experiences with their parents and caregivers. 

Free outdoor concerts are back at the Missouri History Museum. The May series of concerts features favorite bands, food trucks, and exhibits inside the museum that are open to the public on concert nights. Concerts are held from 6-8 p.m.

Is it time to potty train your toddler? The St. Louis County Library is offering Potty Training 101 to parents of children ages 2-3. This free workshop for parent and child includes a potty-themed storytime, and parents & caregivers will receive information to get them started on the potty training process. Attendees will also receive a potty seat, step stool, training pants and a potty-themed board book. 

Visit The Magic House for Toddler Time, a special early-morning program for toddlers. Children age 1-4 can take part in exhibits and exclusive interactive activities designed just for little ones. There are new themes every week!

Take part in a free yoga session just for kids! Children's yoga, presented by Complete Harmony, is held at the Brentwood Public Library on Thursdays from 9:30 to 10 a.m. Classes include stories, movement and mindfulness and are geared for children up to age 5. Bring a yoga mat or towel.