Big Backyard Bash: The Family Festival
St. Charles County Has Been Waiting For
Are you looking for something fun to do that is family friendly, yet perfect for all ages? The Big Backyard Bash has something for everyone.
This isn't your typical county fair. This is like a backyard block party times 100.
Coming to The Steel Shop (49 Lawrence, St. Charles, MO) on August 29-30, 2026, Big Backyard Bash is a brand-new end-of-summer tradition built entirely around families spending the day together. No rushing between rides and reading fine print on ticket bands just a full day of oversized attractions, live entertainment, local vendors, and friendly family competitions, all in one fenced-in, stroller- and wagon-friendly space.
What to Expect
Big Backyard Bash was created by Kayci Crew, founder of St. Charles-based Belledene Events, after years of traveling the country to work large-scale events. She kept noticing the same gap back home: plenty of county fairs, state fairs, and carnivals, but nothing designed specifically around families doing a day together. Big Backyard Bash is her answer to that.
Expect:
- Giant inflatables scaled up well beyond typical bounce-house size
- Foam parties and other hands-on, kid-powered fun
- Live entertainment throughout both days
- Local vendors showcasing the best of the St. Charles and St. Louis business community
- Family-friendly competitions for a little friendly rivalry
- A fully fenced, single-entry site with security on-site all weekend, so parents can relax and actually enjoy the day
A Weekend Built on Local Business
One thing that sets Big Backyard Bash apart is how intentional it is about local business involvement. Before starting Belledene Events, Crew spent years on the vendor side of events like this one, and that experience shaped how she built the festival with local businesses woven into the weekend rather than treated as an afterthought.
Plan Your Visit
- When: August 29–30, 2026
- Where: The Steel Shop, 49 Lawrence, St. Charles, MO
- Tickets: Admission includes unlimited access to attractions throughout the day. Get tickets and full details at Belledene Events.
Whether your crew is chasing down the biggest slide on the grounds or just soaking up a summer afternoon together, Big Backyard Bash is shaping up to be the kind of day your kids will still be talking about at bedtime.
Big Backyard Bash marketing and digital strategy by Missouri Market Boss, a St. Charles County digital marketing agency serving local businesses across St. Charles and greater St. Louis.
