Credit: Lisa CorsonWith 300 miles of sandy shoreline, North Carolina claims seventh on a list of states with the most coastline and number two when you winnow that list down to just the east coast. Beaches on the Outer Banks and in the Wilmington area get plenty of attention, but they’re far from the only place in the state to spend time on the water. From the tranquil Topsail area to the impressive Crystal Coast, North Carolina’s seashore is a …