BigBackyardBash
Big Backyard Bash 2026 brings families together for a full day of inflatable fun, foam parties, competitions, live music, food trucks, and unforgettable memories in St. Charles, Missouri. This is what summer used to feel like — no screens, just one big yard, one big crowd, and the kind of day kids will bring up at Thanksgiving in 2041. Headlining the main stage: Steve Ewing Band — the unmistakable voice behind The Urge, the St. Louis legends who soundtracked an entire generation of summers.
Mark your calendar.
All the good stuff, none of the lines.
Not a carnival. Not a waterpark. A giant outdoor play day packed with the kind of activities your kids will be telling their friends about Monday morning.
The GellyBall Zone.
The ultimate blaster battle, live at the Bash all weekend. Grab a mask, grab a blaster, and go head-to-head across a field of inflatable bunkers. The gel balls are 90% water, non-toxic, and leave no paint and no stain — so it’s a whole lot gentler than paintball and there’s nothing to scrub out of a t-shirt afterward.
- Safe & fun for all ages
- Non-toxic, no-stain gel balls
- Masks + blasters provided
- Run by Big Time Fun Company
Tickets going fast.
Tickets are handled through Eventbrite — grab yours below!
- Children 2 and under get in free.
- Use promo code GREATDAY for an all-day unlimited play wristband.
- Educators, veterans and first responders get in free with their family. No ticket needed — just show ID at the gate.
Sponsored by
Ready to reclaim childhood?
August 29 & 30, 2026 · Steel Shop Athletic Grounds. Outside all day. No screens. Just summer.