The problem I see with trying to reconcile wild areas and protected ecosystems with nearby high-density housing and human development on Cape Roger Curtis is that we people tend to love our nature to its death. Especially if it is in our backyard and easily accessible.
From a purely conservation point of view, designating a natural ecological land/marine park (with exception of a community park for people) right next to high density housing, retail and facilities, such as a green waste depot, an inn and a school with the associated traffic and daily human activity will inevitably result in a higher level of overall environmental degradation than would a protective zoning that creates large, single dwelling properties where most of the privately owned acreage would likely remain green. I don't see most future owners of these Cape Roger waterfront properties clear-cutting their lots so they can enjoy looking at their neighbour's house.