Not only have we got to the point that most swimming spots aren't safe to swim in in summer; our estuaries—and this is a recent picture of the Ōreti estuary. It's just out of Invercargill. It's called the New River Estuary. That picture, if you can see it, has about a foot deep of recent sediments. I've got other photos here that show that the cockles are all dead. The cockles have gone. These are recent sediments. 