Kenting National Park Headquarters hosted the premier for the eco-documentary film Autumn on the Wing- Longluan Lake; The Seasons in a Wetland.
Longluan Lake, located at the lowest point of the Hengchun Rift Valley, was formed by accumulated rainwater and run-off water from the surrounding environment. The low-land has been the cause of flooding to the neighboring farmlands during the monsoon season and, in many cases, serious flooding brought disaster. It has been a big problem for farmers for years. In 1948, the government funded a project to construct lake embankments around the lake, and Longluan Lake became a reservoir. This reservoir canvasses a land of 175 hectares at the fullest point and provides abundant water resources for agricultural irrigation in the area. Every autumn and winter, migratory birds flock to the area and turn the reservoir into a "paradise of wild birds" in southern Taiwan. In 1984, the establishment of the Kenting National Park meant this area was zoned as a special scenic area. In 1994, the Longluan Lake Nature Center was opened to the public; this was the first nature center in Taiwan themed on bird ecology. In 2007, Longluan Lake received an official status as a national-class wetland. This documentary film is themed on the biodiversity of Longluan Lake and branches out into history, geography, conservation record, and future development. The film ends with a footnote; migratory birds come back in autumn each year as if a pact had been made between the lake and the birds, and the story of the birds continues in an endless cycle.