A large cave system set within two spectacular hills just south of Yangshuo. Inside the caves is a rock formation that is said to resemble a butterfly. As you exit the cave, you find yourself high on cliff face with a water fall cascading down past you. A suspension rope bridge connects you to the neighbouring hill like something from and Indiana Jones movie. At the foot of the hill, the tour guide will take you into a greenhouse filled with many butterflies - a butterfly zoo of sorts. There is also a short dance performance on a butterfly theme.