I love Reedy Creek Park! It features my favorite Charlotte DOG PARK which is usually occupied by at least a few dogs even at weird times like 2:30pm on a Wednesday... and on weekends with nice weather the place is just full of dogs and people!
Reedy Creek has great trails that make you feel like you are truly "away from it all." There are many fields for group sports. The disc golf course is mostly wooded, which I appreciate and adds that extra challenge for those with advanced skills.
I don't know much about it but there is a Nature Center that seems to attract a lot of families with children of all ages...
All in all this park has many amenities and is well worth the drive from the neighborhoods closer to downtown...!