China's newest city turns 2

Editor's note: This is the sixth in a series of special reports in which our reporters will travel the length of China's 18,000-km-long coastline to detail the lives of the people whose existence is dominated, and often facilitated, by the waters that stretch from Bohai Bay in the north to the Zengmu shoal in the south.

Sansha's islets have served as landmarks for generations of Chinese fishermen, reports Peng Yining in Sansha, Hainan province.

After a storm washed him ashore on Yongxing Island 30 years ago, Zheng Youbai had to survive on the deserted spot in the South China Sea like a modern-day Robinson Crusoe for a month until a fishing boat rescued him.