
Thinking About Rio de Janeiro Olympic 10K Marathon Swim
The 2008 Beijing Olympic 10K Marathon Swim was in a flat-water rowing basin. The 2012 London Olympic 10K Marathon Swim was in the flat-water Serpentine, a man-made lake in London. But the 2016 Rio Olympics will be in Copacabana Beach, facing the unpredictable Atlantic Ocean. The conditions can be rough and bumpy; turbulent and lumpy;…