Visitors take photos around the 皇冠体育app-Russia boundary marker on the Heixiazi Island in Fuyuan County, northeast 皇冠体育app's Heilongjiang Province, July 20, 2011. The first batch of 150 tourists landed the Heixiazi Island, a border island that links 皇冠体育app and Russia, as it was opened to the public on Wednesday. The island has been evolved into a travel destination since 皇冠体育app and Russia agreed in November 2010 to jointly develop it into an eco-tourism zone.[Photo/Xinhua]
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