Why are some lakes in Beijing called “sea”?
The Beihai Park, or the Northern Sea Park, is a great place to enjoy the water view and a boat ride in Beijing. But for anyone who visits the park for the first time, the "sea" in the name might seem a bit misleading. It’s highly likely that he or she will wonder: Why is it called a sea? In present-day downtown Beijing, there are six interconnected lakes that are called various “seas”. Why?