Slender West Lake, formerly Baozhang Lake, is located in the northwest of Yangzhou City, Jiangsu Province, covering an area of two square kilometers. In the mid-18th century, the moats and a large number of suburban villas of salt traders along the moats built in different locations and in different historical period (Sui, Tang, Song, Yuan, Ming and Qing dynasties) were connected elaborately and delicately to welcome the south inspection of Emperor Qianlong, thus forming a beautiful belt of the lake with garden scenery combining natural and human landscapes characterized by the most famous 24 scenes of "rolling stone archway, winding water in west park, spring pillow on the long bank, bright cloud in white pagoda" etc. The typical layout of Chinese scroll-type picture was recorded by royal painters and filed in imperial storehouse due to its unique aesthetic value. Thanks to the impact of the south inspections by Emperor Qianlong and the support of its salt economy, Yangzhou had became the garden-building centre in China, represented by classical garden cluster around the Slender West Lake. As well-known as "Yangzhou Gardens is second to none in South China" and "Yangzhou Gardens is the best in China", it embodies the most advanced art in terms of layout, architecture, stone laying, water conservation, plant arrangement, etc. As a masterpiece in garden-building after Yuanmingyuan Park during the reign of Emperor Kangxi in the Qing Dynasty, a lot of experiences can be drawn from it in the construction of the Chengde Mountain Resort.
