Yundong Cave is located on the eastern edge of Perak. From the foothills to the top of the mountain, it is almost entirely made up of a variety of granite stones. There are countless exotic stone chambers in the gaps between the rocks. Among them, the larger caves can accommodate thousands of people, known as the "Thousand-Man Cave," and the narrow-lined one-day sky needs to be gradually moved sideways. When you climb to the top of the hill, there is a dynamic rock on it, and it seems like it is really shaking when the wind blows. Even though it appears to be moving there is no danger.