The U.S. Winter Nationals swimming event takes place from Dec. 3 to 5 in Federal Way, Washington. At the competition, swimmers are able to make qualifying times for the 2016 Olympics.
As we continue to look at the art of motion at the 2012 Olympics in London, here’s a selection of photos highlighting the competitive world of swimming and diving from under the surface. They include Michael Phelps, Missy Franklin, and Ryan Lochte.
Photographers featured: Michael Dalder (Reuters), Al Bello (Getty Images) and Francois Xavier Marit (AFP).