Freshwater Swimming For Fitness

Do You Swim For Fitness in Freshwater?

This photo of a swimmer getting an early morning workout in London's Hyde Park makes me want to jump into a freshwater lake. Swimmers have been taking the plunge in the park's Serpentine Lake for more than 140 years. Do you ever swim for fitness in freshwater, such as a lake or (stretching the definition of "freshwater" ) a dumpster pool? Do these photos make you want to try it?

Source: Getty