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Beachgoers have fun with algae on China's Qindao coast.

QINGDAO, CHINA - JULY 03: (CHINA OUT) Seaweed Swamps Qingdao Coastline. Tourists play at a beach covered by a thick layer of green algae on July 3, 2013 in Qingdao, China. A large quantity of non-poisonous green seaweed, enteromorpha prolifera, hit the Qingdao coast in recent days. More than 20,000 tons of such seaweed has been removed from the city's beaches. (Credit Image: © Whitehotpix/ZUMAPRESS.com)

Beachgoers have fun with algae on China's Qindao coast

 Tourists play at a beach covered by a thick layer of green algae in Qingdao, China. A large quantity of non-poisonous green seaweed, enteromorpha prolifera, hit China's Qingdao coast last month. More than 20,000 tons of such seaweed has been removed from the city's beaches. This has now become an annual summer event. (Photographs © Whitehotpix/ZUMA Press)