Physics is all around us but it is very easy to see in swimming. For example, when someone is diving off the block, it can be seen as a kinematic equation problem. You can find the horizontal velocity and the time that they are in the air. You know the vertical distance of the block so you can find the launch angle. You could also find the point at which they enter the water and how long it takes them to reach the maximum vertical distance. The next time you dive into a pool, you should think of all the physics in what you're doing.