The original name of the four-hole ditch is the stream, because of the four-level waterfall in the stream, the waterfall is called the waterfall, and the later is commonly known as the four-hole ditch. It is located in the Datong River, the river valley, 17 kilometers from the Chishui city. Mainly based on the four-level waterfall group and the three-dimensional ecological landscapes of Danya, bamboo forests, squats, flowing water, Bitan, tidal flats and other areas throughout the Suixi Basin, there are nearby Duxian Bridge, Shiding Shandan Xia Landform Wonders, provincial cultural relics Zheng's Festival Xiaofang and Liangcha River scenery, Huaping Waterfall, Attractions such as Dashuigou Waterfall. In the spring and summer rainy season, more than 20 waterfalls of different shapes are often seen falling from the mountains on both sides, which is quite spectacular. Sidonggou Scenic Area is an important part of Chishui National Key Scenic Area. Located in Datong Town, Chishui City, Guizhou Province, 15 kilometers away from the city. The scenic spot is a mountain stream about four kilometers from Sidonggou, and the main body is a four-level drop waterfall arranged at roughly equal distance. The magnificent water curtain cave waterfall is like the Moon Lake Waterfall of Silver Comb, with the legendary Flying Frog Cliff Waterfall and the largest Bailongtan Waterfall in the scenic area. Although several waterfalls are small, they are very characteristic. The water curtain hole of a cave waterfall will make you linger. Choose a stone chair next to the two cave waterfalls to listen quietly, which is too pleasant. The scenic spot is full of mountains and drops, and the spring is a waterfall. Walk through the winding red stone path, walk on the trail, feel the charm of the waterfall up close, take a bamboo raft, and hang on the water pool. You can also play in the water in summer. In the scenic area, not only the green bamboos, but also the rare plants such as the dragonflies. When you go to the four-dong ditch, you must see the ladder waterfall group scenic spots.