Swimming My son, six and a half, has been swimming for three years. Since my family is located in the north of China, it is very cold in winter and unsuitable for swimming. He has been swimming for three years, which is equivalent to three summers. So far, he hasn't mastered swimming skills. Today, I decided to take him swimming. On the shore, I bought a swimming equipment for him, , including inflatable cuff, buoyancy float. He is particularly exciting when he put on the equipment, and scarcely wait to jump into the water. From the jump into the water to come out, we had spent about one hour and ten minutes.