The beach at Zhanqiao Pier in Qingdao city, East China's Shandong province, is covered in overgrown green algae, July 14, 2011. The algae also covered a large area of sea surface near the beach, and forced the beach to close at 3 pm. Qingdao city is a significant seaport of eastern China and one of China's most popular tourist destinations. [Photo/CFP]
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