Your kids can test their might and compete with their peers in the Iron Kid Triathlon sponsored by St. Louis County Parks.
The competition consists of three part - a swim, bicycle ride and run. There will be two age divisions, 7-10 years and 11-14 in this friendly competition. Parents are encouraged to volunteer.
8 a.m. to noon at the Pavilion at Lemay. Cost is $20 per child in advance and $25 on the day of the event.
More information and to register: stlouisco.com
The Saint Louis Art Fair is a free, three-day celebration of the visual and performing arts that includes a Creative Castle for kids on Saturday and Sunday.
The annual Kirkwood Greentree Festival will be held September 18 - 20 in Kirkwood Park. This free, family festival features a parade that steps off on Saturday at 10 a.m. beginning at Kirkwood High School, entertainment and food vendor booths, and kids activities.
Head to Forest Park for the annual Great Forest Park Balloon Glow and Race.
Kids can work on existing gym skills, learn new skills or just play around during Open Gym at Miss Kelly's Gym in Creve Coeur.
Wagon rides, live entertainment, great festival foods, a petting zoo and much more make this an apple pickin' good time for the whole family. There will be pony rides, a children's carnival, opportunities to feed goats and other farm animals, caramel apples, funnel cakes and more.