In pictures: Istanbul open water swimming event spans 2 continents

The race takes participants 6 kms down the Bosphorus Strait from the Asian side of Istanbul to the European side.
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OZAN KOSE/AFP/Getty Images
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Swimmers jump in the Bosphorous river as they take part in the Bosphorus Cross Continental Swim event on July 23, 2017. The race takes participants 6 kms down the Bosphorus Strait from the Asian side of Istanbul to the European side.
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OZAN KOSE/AFP/Getty Images
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Swimmers jump in the Bosphorous river as they take part in the Bosphorus Cross Continental Swim event on July 23, 2017. The race takes participants 6 kms down the Bosphorus Strait from the Asian side of Istanbul to the European side.
SWIMMING-RACE-TURKEY-03.jpg
OZAN KOSE/AFP/Getty Images
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Swimmers jump in the Bosphorous river as they take part in the Bosphorus Cross Continental Swim event on July 23, 2017. The race takes participants 6 kms down the Bosphorus Strait from the Asian side of Istanbul to the European side.
SWIMMING-RACE-TURKEY-04.jpg
OZAN KOSE/AFP/Getty Images
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Swimmers stand aboard a ferry boat before taking the start of the Bosphorus Cross Continental Swim event on July 23, 2017. The race takes participants 6 kms down the Bosphorus Strait from the Asian side of Istanbul to the European side.
SWIMMING-RACE-TURKEY-05.jpg
OZAN KOSE/AFP/Getty Images
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Swimmers stand aboard a ferry boat before taking the start of the Bosphorus Cross Continental Swim event on July 23, 2017. The race takes participants 6 kms down the Bosphorus Strait from the Asian side of Istanbul to the European side.
SWIMMING-RACE-TURKEY-06.jpg
OZAN KOSE/AFP/Getty Images
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Swimmers jump in the Bosphorous river as they take part in the Bosphorus Cross Continental Swim event on July 23, 2017. The race takes participants 6 kms down the Bosphorus Strait from the Asian side of Istanbul to the European side.
SWIMMING-RACE-TURKEY-08.jpg
OZAN KOSE/AFP/Getty Images
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Swimmers wait for the ferry boat before taking the start of the Bosphorus Cross Continental Swim event on July 23, 2017. The race takes participants 6 kms down the Bosphorus Strait from the Asian side of Istanbul to the European side.
SWIMMING-RACE-TURKEY-09.jpg
OZAN KOSE/AFP/Getty Images
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Swimmers compete in the Bosphorous river as they take part in the Bosphorus Cross Continental Swim event on July 23, 2017. The race takes participants 6 kms down the Bosphorus Strait from the Asian side of Istanbul to the European side.
SWIMMING-RACE-TURKEY-10.jpg
OZAN KOSE/AFP/Getty Images
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Swimmers compete in the Bosphorous river as they take part in the Bosphorus Cross Continental Swim event on July 23, 2017. The race takes participants 6 kms down the Bosphorus Strait from the Asian side of Istanbul to the European side.