Tourists take rest in Xishuangbanna Tropical Botanical Garden in Dai Autonomous Prefecture of Xishuangbanna, southwest China's Yunnan Province, June 14, 2009. Thanks to more efforts taken by local authorities to protect tropical rainforest, the area of the nature reserve has risen to more than 67,000 hectares in the prefecture and the number of wildlife is also on the rise along the Tropic of Cancer. (Xinhua/Lin Yiguang)