Beijing's winter swimmers take a dip in icy waters

Winter swimmers in Beijing are enjoying one of the last pieces of unfrozen natural water in the city - it's kept unfrozen thanks to the activities of five ducks who swim in that patch.

Zhang Jingzhong, who's been swimming in icy water for 12 years, says it's the ideal way to escape the pressures of daily life.

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Media captionZhang Jingzhong on why he goes winter swimming in Beijing