Website: https://stlouiscountymo.gov/st-louis-county-departments/parks/places/
Playground Ground Cover: Poured Rubber
This is a small playground that is perfect for toddlers. MacKenzie is a tiny municipality near Affton and Shrewsbury with a population of 134 so if you blink you'll miss it. If you're heading South on MacKenzie turn onto Holly Hills and it's right there.
I've included a map because there is another park 1 street over called MacKenzie Hills Park. Let's just make things confusing for everyone and name the 2 parks almost identical names! I prefer this park to that one because it's totally shaded by trees which is rare. It's on a residential street so there's no parking lot but plenty of street parking. In addition to the playground, there is a small basketball court and a little free library. I just wish there was a bathroom!