Philip's Trail Introduction: Philip's Trail is named in commemoration of Prince Philip, Duke of Edinburgh, witnessing China's tropical rainforest to the world. In 1986, Prince Philip, Chairman of the World Wildlife Fund, visited Xishuangbanna for inspection. He was deeply shocked by the flora and fauna here, especially the tall and straight trees that looked up to the sky. After returning, Prince Philip introduced to his colleagues his inspection in Xishuangbanna, China, and witnessed the conditions of the tropical rainforest. He also wrote a book and introduced the Xishuangbanna Rainforest to the world.