The South Pacific is the greatest ocean on Earth. It is still relatively healthy and teeming with fish, but it is a fragile paradise. Like all our oceans, it has little or no protection. So what is being done to preserve this ocean and its wildlife? The whales’ future looks secure, for the moment, but international fishing fleets are taking a serious toll on the sharks, albatross and tuna. And there are other insidious threats to these bountiful seas.