.
People swim at the No 1 Bathing Beach in the East China coastal city of Qingdao where the water was filled with enteromorpha prolifera, a sea plant that reproduces rapidly, putting the swimmers at risk, July 15, 2011. Several of the beaches in the city have been attacked by the green stuff for the past week and the clearing work is under way: photo by Zhou Kun/China Daily
Chinese tourists play by the algae-filled coastline of Qingdao, in eastern China's Shandong province, 17 July 2011. Green algae continues to spread in waters off China's east coastline: photo by AFP
A boy plays at a bathing beach filled with green algae in East China coastal city Qingdao, 16 July 2011: photo by Xinhua
People swim at a bathing beach filled with green algae in East China coastal city Qingdao, 16 July 2011: photo by Xinhua
A girl swims at a bathing beach filled with green algae in East China coastal city Qingdao, 16 July 2011: photo by Xinhua
A Chinese man swims along the algae-filled coastline of Qingdao, in eastern China's Shandong province, 17 July 2011. Green algae continues to spread in waters off China's east coastline: photo by AFP
Chinese children swim along the algae-filled coastline of Qingdao, in eastern China's Shandong province, 17 July 2011. Green algae continues to spread in waters off China's east coastline: photo by AFP
A Chinese man swims with his son along the algae-filled coastline of Qingdao, in eastern China's Shandong province, 17 July 2011. Green algae continues to spread in waters off China's east coastline: photo by AFP
A boy swims along the algae-filled coastline of Qingdao, in eastern China's Shandong province, 17 July 2011. Green algae continues to spread in waters off China's east coastline: photo by AFP
Beach on the algae-filled coastline of Qingdao, in eastern China's Shandong province, 17 July 2011. Green algae continues to spread in waters off China's east coastline: photo by AFP
A boy plays at a bathing beach filled with green algae in East China coastal city Qingdao, 16 July 2011: photo by Xinhua
People swim at a bathing beach filled with green algae in East China coastal city Qingdao, 16 July 2011: photo by Xinhua
A girl swims at a bathing beach filled with green algae in East China coastal city Qingdao, 16 July 2011: photo by Xinhua
A Chinese man swims along the algae-filled coastline of Qingdao, in eastern China's Shandong province, 17 July 2011. Green algae continues to spread in waters off China's east coastline: photo by AFP
Chinese children swim along the algae-filled coastline of Qingdao, in eastern China's Shandong province, 17 July 2011. Green algae continues to spread in waters off China's east coastline: photo by AFP
A Chinese man swims with his son along the algae-filled coastline of Qingdao, in eastern China's Shandong province, 17 July 2011. Green algae continues to spread in waters off China's east coastline: photo by AFP
A boy swims along the algae-filled coastline of Qingdao, in eastern China's Shandong province, 17 July 2011. Green algae continues to spread in waters off China's east coastline: photo by AFP
Beach on the algae-filled coastline of Qingdao, in eastern China's Shandong province, 17 July 2011. Green algae continues to spread in waters off China's east coastline: photo by AFP
