Take that big Ford out on the beach. No permit needed if you’re north of Corolla or $50 for a week on the NPS lands. We like to find a quiet spot on the Sound side and place our chairs out in the water.
In Manteo, visit Fort Raleigh and, if you’re in to formal landscaping, the nearby Elizabethan Gardens one afternoon. Then, as others have suggested, take in The Lost Colony on the same grounds that evening. The Manteo waterfront, QE II sailing ship, NC Aquarium and Alligator River National Wildlife Refuge Hdq are all in that area and worth a visit.
The NPS Visitor Centers often have hands on activities such as fishing, crabbing, seining that are fun to participate in.