Where is the best coral on earth?

2. Coral reefs

(1) Coral reef ecosystem in Sanya Coral Reef National Nature Reserve.

(2) Guangxi Weizhou Island Coral Reef National Ocean Park.

(3) Coral reefs in the Caribbean.

(4) The Great Barrier Reef is the largest and longest coral reef group in the world, which is located in the southern hemisphere and runs through the northeast coast of Australia.

(5) Borneo World Coral Reef.

(6) New Caledonia lagoon coral reef ecosystem.