Hot air balloon carnival. According to the inquiry of local treasures in Hefei, the sightseeing projects of Hefei Garden Expo Park No.8 include: door helicopter flying experience, hot air balloon carnival, "Intangible Heritage Park", a series of theme parks (parent-child park, Hanfu Park) and other interesting projects. Hefei Garden Expo Park is a city park converted from Luogang Airport, located in Luogang Park, Hefei City, covering an area of about 323 hectares. This is the venue of the 14th China (Hefei) International Garden Expo. After more than three years of careful preparation, the Expo officially opened on September 26, 2023.