The island Ganquan Dao is surrounded by salt water. Yet it has something precious: a well of fresh water. Where does it come from? And how has it made life possible on this tiny island in the South China Sea?
The island Ganquan Dao is surrounded by salt water. Yet it has something precious: a well of fresh water. Where does it come from? And how has it made life possible on this tiny island in the South China Sea?
