Introduction to Longtan Waterfall: The source of Longmen is a stream in the canyon. There are many waterfalls along the stream. The largest one is Longtan Waterfall, which pours down from a cliff more than 10 meters high into Longtan Waterfall, like a dragon spitting water, and silver flowers blooming in it. Splashing and rumbling water. The blue waves in the pool are rippling, crystal clear, and the water is pure and pure.