But their passion goes beyond China's national sport.

In this northern inland city with a big lake, people also want to get a taste of sailing. The places for training courses are fully booked. 

Demand for sports equipment is also surging. Store owners say many products are sold out.

Sports store manager Yang Peng said, "The selling is incredibly good here. Some popular products are usually sold out within a day."

Now, more and more people are taking part in various sports. The Olympics were only 17 days, but health lasts a lifetime.