Jump on in! The water's fine!

Swimming is an excellent form of exercise, putting little to no stress on the joints and burning more calories per hour (when done vigorously) than most other sports. But swimming is not only good for you, it can also be a lot of fun.

The Fédération Internationale de Natation (FINA) governs competitive swimming at the international level. FINA recognizes the four competitive strokes: backstroke, breaststroke, butterfly and front crawl (most often called "freestyle").

Each stroke starts at a starting block or at the edge of the pool and is comprised of propulsive upper- and lower-body movements and a turn at the wall. Proper stroke technique will help you move through the water with greater speed and avoid injury.