How does the Grand Canal work?

The Grand Canal is a vast network of waterways in China that connects the Yellow River and the Yangtze River, facilitating the transportation of goods and people across regions. It operates through a series of locks and canals, which help manage water levels and ensure navigability. Historically, the canal has played a crucial role in the agricultural and economic development of the regions it traverses, allowing for the efficient movement of rice and other commodities. Today, it remains an important transportation route and a cultural heritage site.