Chongqing is also called YU. It has a long history of more than 3,000 years, which is a famous historic and cultural city. Chongqing became a treaty port in the year 1891. Chongqing is rich of tourism resources. Up to 1999, Chongqing has 1 world cultural heritage, Dazu Rock Carvings, 4 national parks(Three Gorges, Jinyun Mountain, Diaoyucheng City, Mount Simian in Jiangjin District, Mount Jinfo in Nanchuan District), 5 national forest park(lesser Three Gorges on Daning River, Shuanggui Mountain, Mount Jinfo , Huangshui in Shizhu county, Xiannv Mountain). For one-day trip, you can go to Zhazidong, Baigongguan, Ciqikou, Jingyun Mountain, Jinfo Mountain, Jindao gorge etc.