Three hundred mountains, the collective name of the peaks on the southeast border of Anyuan County, is the source of the Dongjiang River, the birthplace of drinking water for Guangdong and Hong Kong residents, and the only tourist attraction in China that has the meaning of thinking about the source of drinking water for Hong Kong compatriots. Mount 300 is a national scenic spot, National Forest Park, Hong Kong Youth national education base, and the first batch of ecological education demonstration sites for the protection of the mother river in China. After the publicity, Mount 300 scenic spot has officially become a national 5A tourist attraction.