The river Ganges flows from the Himalayas to the Bay of Bengal at more than 2,500km long, weaving through some of Asia's most densely-populated regions, with hundreds of millions of people relying on this water source.

However, the growth of cities, pollution, dams, and the industrial/agricultural removal of water have affected the flow and health of this vital river.

Predictions and information about water levels vary, but the WWF has listed the 2,520-kilometer (1,568-mile) Ganges as among the world's most endangered rivers. In these images, a glimpse of daily life along this holy river can be seen.

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