The Tad Fa Waterfall, which once served as a stronghold of the Communist Party, is now a popular tourist destination within the serene National Park. It is the tallest and largest waterfall in Surat Thani Province, featuring ten tiers with the highest level boasting a dramatic cliff that rises approximately 80 meters. During the rainy season, the waterfall experiences a surge of water, cascading down the cliff with such force that it seems to be pouring from the heavens, which is how it earned its name, "Tad Fa," meaning "Heavenly Waterfall." This breathtaking natural wonder is located in Moo 7, Lam Phun Subdistrict, Ban Na San District, Surat Thani Province.