Maritime - I try to do a run weekly to the closest piece of winding road. Check out Google maps 'Royal National Park, New South Wales'.
Lots of corners and (mostly) a fairly good road surface, but narrow. In windy weather you need to watch out for tree branches on the road, and after rain there can be water flowing across the road. Weekends the road has too many slow tin-tops and too much police radar, but early morning on weekdays can be perfect.