Introduction to boating on dry land: The Hukou Waterfall has a large drop. In addition, the deep groove under the waterfall is long, narrow and deep, and the water flow is fast, which makes it very difficult for boats to pass on the water. In the past, ships sailing down the river from the upper reaches of Hukou had to dock at the Dragon King Temple above Hukou, disembark all the goods, and use human and animal packs to transport them along the river bank to the downstream wharf. At the same time, they were transported by manpower The empty boat is pulled out of the water, and round wooden poles are laid under the boat. The empty boat is rolled forward on the river bank until it reaches the slower water flow downstream of Hukou. The boat is then put into the water, loaded with cargo, and continues downward. On the shore, manpower Towing a boat is very laborious and often requires hundreds of people to work hard to pull the fiber. Water navigation through Hukou has been blocked for many years, and only traces of the past navigation on dry land can be seen.