http://www.sciencemag.org/news/2019/12/coral-reefs-suffer-around-world-reefs-french-polynesia-are-thriving

Some of the world’s healthiest reefs are in French Polynesia.

In a world where warming seas, pollution, and predation are killing coral around the world, an extensive survey of French Polynesia has found a ray of hope. On some atolls there, live coral covers 70% of the reef’s surface; on others, big fish such as grouper and barracuda that have almost disappeared elsewhere are thriving.