Introduction to Jade Linglong: Jade Linglong is the treasure of Yuyuan Garden. It is located in the middle of the first three stone peaks of "Yuhua Hall". It is the same as the "Ruiyun Peak" in Suzhou Liuyuan Garden and the "Wrinkled Cloud Peak" in Hangzhou Flower Garden. Together they are known as the "three famous stones" of Jiangnan gardens.