The photographers also visited the Taiyuan pump station of the Dongjiang-Shenzhen Water Supply Project at Qiaotou town of the city of Dongguan, the origin of fresh water supply to Hong Kong.
Ng Man-kuen, in his 70s, recalled a terrible drought in 1963, during which Hong Kong residents could only get a fresh water supply for four hours every four days. It was because of the drought that the central government decided to launch the project.