We stopped in rocky mount north carolina at a nice country inn and suites. Kids could make their own waffles for breakfast and there was a decent indoor pool opened for after dinner swimming.
On the way down we stopped at the lewis ginter botanical garden about 3:30 ish in richmond va. My kids loved it. There is a childrens garden with a splash pad for the kids to get good and wet ( i knew in advance and had extra clothes), and a nice butterfly exhibit. We were there for about 1 1/2 to 2 hours total- just did the butterflies and kids area plus the beautiful gift shop. (
aaa discount avail) Then we drove on to nc and stopped for the night. Its about 5 hrs the next day.
The next day we stopped for lunch at a restaurant in south carolina - red bone alley. We were there just at 12. A little earlier may be better as there were already a lot of people - look at it on line. It took a little more time than i woul have liked but food was good and kids loved it.
Next time i may try to get to fayetteville and stop there.