June 8 marks World Oceans Day, a global event dedicated to the protection and preservation of our oceans. CGTN takes you to China's Xisha Islands in the South China Sea, where the Chinese PLA Navy, tasked with safeguarding national borders, is also deeply committed to leading significant environmental conservation efforts. Reporter Feng Yilei shares the story of how these guardians of Nature maintain the ecological balance of this pristine paradise.

(Fang Zhikun, Ge Hanqiang, Jiang Wangyang, Zhang Guoxiong, Zhou Sihong also contributed to this story)