Awesome! Would you be willing to describe how to get to that gravel road?
Travel North on Hwy. 441 to Tallulah Falls, Georgia. When going through Tallulah Falls on Hwy. 441 (which is mostly the State Park) you will cross over Tallulah Gorge and can see Lake Tallulah. Continue North for about 1/4 mile then turn right onto Jane Hurt Yarn Rd. About 1/2 mile or so, the road will fork and you will need to stay left. However, while you are there, it would be worth your time to go into the Jane Hurt Yarn Interpretive Center, which is the right fork. This is in the State Park and displays a great history and artifacts of the area. Back to the trail... Stay left at the fork and in another 1/2 mile or so the paved road will turn to gravel. In a few minutes you will see a sign for Stone Place. Go towards Stone Place. In a few more miles the road will fork again and you will stay right towards Stone Place. Before the road gets steep there will be a sign that says 4wd vehicles only. The road will eventually end at Stone Place which is where my Jeep is parked in the picture. There is a boat ramp, parking and some primitive camping sites. You can put in a boat with a maximum of 25 HP motor. I'll try to post a map later. You can also search the web for Stone Place Tallulah Falls and Jane Hurt Yarn Interpretive Center or Tallulah Falls State Park. I think its 6 or 7 mile from the main road to Stone Place.
Getting out there with your son. Some of the times that I remember very fondly were those spent riding with my dad on excursions. 
