Some people in western Hong Kong have been swimming in waters off the former British colony for many years. But some worry they are seeing more pollution in the form of plastics.
Hong Kong Swimmers Brave Busy Waters

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Miao Rong Lu, 68, swims in the sea at the Sai Wan Swimming Shed in Hong Kong, China, October 5, 2018.

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A man prepares to swim at the Sai Wan Swimming Shed in Hong Kong, China, October 7, 2018. REUTERS/Hannah McKay

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Women prepare to swim in the sea at the Sai Wan Swimming Shed in Hong Kong, China, October 4, 2018. REUTERS/Hannah

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Swimmers play cards in the communal room at the Sai Wan Swimming Shed in Hong Kong, China, October 5, 2018. REUTERS/Hannah McKay