NC/VA campgrounds on the river

James River State Park in Gladstone VA. Dogs welcome but they chage an extra fee of $5 per dog per night.

James River State Park

i dont know how much of a river it actually is yet but we have reservations in a few weeks @ Shenandoah valley campground, they have tubing around the park according to the friend who recommended it to me

Davidson River CG near Brevard. Only one loop has electric, but you won't need A/C, so it's not needed. Plenty of fishing and tubing on the Davidson River right in the CG.

Or you could do the KOA in Townsend, TN...not in NC/VA, but not that far out of the way.

Look at RiverCamp USA, out of Sparta.

Four or five years ago, I spent 5 nights at New River Junction in Blacksburg, VA. while working in the Blackburg/Christianburg area. I had a nice grassy site w/W&E on the banks of the New River. Fishing & tubing is the draw. While the park's main focus is catering to the local "tubers", it has about 16 RV sites. The showers are dated, but adequate. IIRC, the dump station is right next to the main building... a weird setup, but worked for me.

There are a lot of trains in the vicinity of the park. Sleep came hard the first night until I became accustomed to the noise. I seldom heard them the remaining 4 nights. The owners were very nice. I wouldn't hesitate to return. They are affiliated with Passport America.

On edit: They do allow dogs but they have to remain on a leash and be well behaved.