An Introduction to Swimming
With 70 percent of the human body containing water and lungs full of air, the human body has a natural buoyancy when entering the water. To stay afloat, a slight propelling downward force is required and, by exerting a propelling force against the direction intended to move, the body can cut through the water with ease. The act of propelling the body through water using the hands, forearms and legs is called swimming.
Today, swimming is regarded as an essential skill and is included as part of the national curriculum. One of the most popular sports in the country, it may be executed for recreational purposes, as a competitive activity or for more adventurous purposes such as swimming in open waters.