Why is the underground Dragon Palace of the Ming Tombs Reservoir closed?

The weather is too cold, the temperature difference between morning and evening is large, and the humidity inside is also very high, which is extremely cold and not suitable for sightseeing.

In order to protect the water quality, the district water affairs bureau issued a document to protect the water source according to the government's requirements, and all the aquariums and amusement parks there were emptied. Now that the dam is closed, all recreational activities, swimming and fishing are banned.

Beijing Jiulong Amusement Park is located in the Ming Tombs Reservoir in Beijing. It is a large-scale amusement park with the characteristics of American Disney. It is also a multifunctional tourist and leisure resort integrating water collection culture, dragon culture and tourism culture in Beijing.