Rio’s troubled waters

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Rio's troubled waters

CNN's Shirley Robertson investigates one of the most controversial Olympic venues in history, Rio de Janeiro.

07:33 - Source: CNN

MainSail 16 videos

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Rio's troubled waters

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RIO DE JANEIRO, BRAZIL - MAY 15: John John Florence of Hawaii surfs during his Round 4 heat at the Oi Rio Pro on May 15, 2015 in Rio de Janeiro, Brazil. (Photo by Buda Mendes/Getty Images)> on May 15, 2015 in Rio de Janeiro, Brazil. (Photo by Buda Mendes/Getty Images)

World Champion John John Florence makes surfing look like child's play

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Gabriel Medina of Brazil rides the wave during team practice, before the WSL Founders' Cup of Surfing, at the Kelly Slater Surf Ranch in Lemoore, California on May 4, 2018. - The two day event brings twenty five of the worlds top surfers to compete on perfect machine-created waves in a half-mile long wave pool situated 100 miles inland from the Pacific Ocean. (Photo by MARK RALSTON / AFP) (Photo credit should read MARK RALSTON/AFP/Getty Images)

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