Outer Banks in July - help choosing layover

[Barnes8084]

Traveling from SW Ohio to Camp Hatteras, Outer Banks, NC in July.... Would like to stay 2 - 2.5 hours out after first day of driving so we are fresh when we arrive.... Anyone have a recommendation for camping about this distance away from Camp Hatteras...??? Would like to stay somewhat close to main road...if possible

Thanks in advance.