summer heat, artificial wave swimming pool, Sichuan province, China. 酷暑, 人造波浪游泳池

 Visitors crowd an artificial wave swimming pool at a tourist resort to escape the summer heat in Daying county of Suining, Sichuan province, China, on July 11.
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The Week in Pictures: July 9 - 16 - NBC News
http://www.nbcnews.com/news/week-in-pictures/week-pictures-july-9-16-n393411