Professional divers serving as voluntary coral reef conservationists in places like Wuzhizhou Island and Fenjiezhou Island routinely carry out underwater "forest protection" work. The special "coral guardians" traverse the colorful seabed year-round, diligently safeguarding the marine creatures' habitats.

With the use of drones, underwater robots and other technologies in coral reef protection and restoration, scientific advancements are injecting new vitality into this "tropical rainforest" of the ocean.