Meeman-Shelby Forest State Park Camp Ground. I live in Memphis and when I want to just get away from the house for a few days, I go there.
Tom Sawyer is nice, but not nearly as pretty.
Avoid the CG at Graceland and at the Agricenter.
I like the BBQ at The Rendezvous. There is a Mom and Pop BBQ place there that is the best BBQ I have ever eaten. It is called Moma's BBQ. Unfortunately, it burned last week. They say 3 months to reopen.