Introduction to Scorpion Valley: This ditch is 25 miles long and is named after the scorpion grass that grows all over the ditch. The grass is shaped like a young mulberry. If you touch the leaves with your skin, you will feel unbearable pain, but it will heal after a short time. There are breathtaking sights such as "A Line of Sky", "Longtan Reflecting the Moon" and "Mo'er Cliff" in Xiezi Valley.