Chinese President Xi Jinping and his wife Peng Liyuan are photographed with Mexican President Enrique Pena Nieto and his wife Angelica Rivera in Sanya on the southern Chinese resort island of Hainan Saturday. Pena Nieto is paying a state visit to China. He will attend this year's Boao Forum for Asia, which will open today in Hainan. [Photo/Xinhua]