It depends. As with terrestrial parks—and Andrew mentioned the management plan—part of the management planning process is to identify zones. We operate with different zones. We have the ability to protect really sensitive areas with special preservation zones and so focus use in areas that are less potentially ecologically sensitive.
The zoning system is a part of the planning process. It then allows us to look at the other interests in that area, and whether we can, through zoning, reconcile various uses, ensuring that in the case of marine conservation areas, they're sustainable into the future.