Butterfly: performed face down in the water. The legs perform a
dolphin kick while the arms move in a forward circle at the same
time.
Backstroke: done while lying on the back. One arm reaches behind the
head with a fingertip entry while the other arm is by the side. The
legs perform a flutter kick.
Breaststroke: performed face down in the water without rotating the
torso. The arms stay in the water and move synchronously, while the
legs perform a breastroke kick.
Front crawl: the fastest style for swimming on the surface. Done
while face down. The arms alternate while the legs perform a flutter
kick.