Very exciting, when going to the counter current, it takes a certain amount of physical strength and strength to climb the rock, and you can drift all the way to the starting point when you come back. It takes more than 2 hours. However, I was soaking in the water for a long time, and it felt a bit cold when I finally came out. It is best to wear mesh sneakers, and all the small stones in the shoes need to be poured out. There is also a small cable car project at the door (6JD cost).