A stream of bluish water bends towards the east and cuts the peninsula into the shape of a gourd the tropical rain forest is a forest biological system with the most abundant life forms on earth and Xishuangbanna is such a survived oasis on the North Tropic and the only large stretch of tropical rain forest in China. Xishuangbanna Tropical Botanical Garden (XTBG) (xī shuāng bǎn nà rè dài zhí wù yuán 西双版纳热带植物园) is the largest manmade botanical garden with the richest life forms established on this aftermost stretch rain forest on the Chinese territory.