H.H.
Hi, C. --
If you haven't been to Highfield Discovery Gardens yet, you definitely should go. It's a nature park and playground designed for kids. I think it's $30/year for a family membership for 4, and they have activities and fun events. It's a beautiful place with a lot of "photo op" spots, in my opinion. It's attached to Glenwood Gardens, just off of I-75.
Here's the link:
http://www.discoverygarden.org/
Enjoy!
H.