Hong Kong taps into the kindness of strangers

Residents of Jiangxi province have been providing the city with clean water for more than half a century. Dara Wang reports.

Xie Yujie stood looking over the land that was home to his ancestors for 350 years. The 65-year-old has often returned to this spot in the decade or so since he and his neighbors were relocated to safeguard the purity of the Dongjiang River, which supplies up to 80 percent of Hong Kong's fresh water.

Xie's ancestral home lay near Yajibo Mountain, the source of the Dongjiang, which spans three counties in Jiangxi province - Huichang, Anyuan and Xunwu.