I did both last month at the Helen Jeep Fest. Both tray and charles are great beginner trails. Charles is about 7 miles has a several nice water crossings.
Here's my trip log from tray: Tray Mountain, GA - ATV/Offroading trip | EveryTrail
2014 JKUS Copperhead
3.73, connectivity, side air bags, RBZ-430 (non-nav), Premium Soft Top, 2.5" TF Coil Lift, Monster TB and Front Lower CA's, LT285/70R17 Toyo Open Country II's on Fuel Trophy's 17x8.5", LOD Full Width Front and Rear Bumpers with Tire Carrier, Goodridge Stainless Brake Lines