Houston has both public and private pools. A public pool is open for everyone's use. A fee may be charged, especially if swimming instruction is also provided. A private swimming pool is the porperty of a single owner or a group of owners, such as the pool of a residential complex. Only the people belonging to the complex can use it. Swimming is a life skill that is significant, since it would enable you to survive accidents or unforseen circumstances. It also helps relax and rejuvenate the body, and is a great workout. People can also learn swimming in order to compete in professional races of displays.