Big Backyard Bash
Think: the kind of summer you wish you had as a kid… but bigger, louder, and way more fun.
We’re turning the Steel Shop Athletic Center into the ultimate backyard playground — and yes, you’re invited.
� What’s waiting for you:
� Giant inflatables & obstacle courses
� Water slides + soak zones
� Backyard games & competitions
� Food trucks that hit every craving
� 60+ vendors to shop while you roam
� Music, energy, chaos (the good kind)
This is your YES DAY.
No planning. No “maybe later.” Just show up and play.
� St. Charles, MO
� August 29–30
� All-day access. Come early, stay late.
Bring your kids. Bring your friends.
Or just bring your inner 10-year-old who never got enough summer.
� Tickets dropping soon
� Vendors + sponsors filling FAST
This isn’t just an event… it’s a full-blown memory in the making.
#BigBackyardBash #StLouisEvents #FamilyFun #SummerEvents #ThingsToDoSTL #FestivalSeason #BelleDeneEvents #EndOfSummer #STLFun #YesDayEnergy
Where is it happening?
Event Location & Nearby Stays:


















