NANTERRE, FRANCE - JULY 30: (EDITORS NOTE: Image was captured using an underwater robotic camera.) Sung Jae Cho of Team Republic of Korea competes in the Men's 200m Breaststroke Semifinals on day four ...
I swallowed down desperate gulps of air from my snorkel. Pool water, too. My lungs burned. The water sloshed around me in waves, churning so much it looked like a boiling sea, the phenomenon natural ...