Introduction to Black Dragon True Pool: The word "true" in Black Dragon Pool is added to distinguish it from other pools. The scenery here is extremely beautiful and it is the highest among the eighteen pools. The body of the Black Dragon Pool is hidden under the rocks, and the mouth of the pool is hidden between the cliffs. It seems to be exposed or not, just like a pearl hidden in a clam shell. The pool is like a porcelain jar, with smooth walls, a round mouth and a big belly. The bottom is flat, the water is dark green and unfathomable. The southern radius of the pool is an oval cave wall, and the northern radius is densely cliffed. There is a waterfall flowing down from a dangerous cliff more than five feet high. In the middle of the cliff is a There are two small pools in the slit, one is called "Spring Flower Pool" and the other is "Autumn Moon Pool", like two shy girls in a boudoir.