As an important green infrastructure of city, the park, on the one hand, works as the lung of city, and on the other hand, provides space for leisure and entertainment. The design of urban parks, in addition to continuing the historical characteristics in accordance with local conditions, must also take into consider factors such as publicity, ecology, aesthtics, etc. The core idea should be to create a harmonious and poetic relationship between men and nature. Recently, the parks in Shenzhen went viral. A large number of citizens poured in and played in the parks. Why do people like visiting parks so much? How to design such a public space? How to deal with the public's demand? The 126th Cool Chat is honored to have many experienced guests from park design industry to share their thoughts.