Introduction to Xiaojiuzhai: Xiaojiuzhai has three bays and twelve miles of waterways, which are concentrated in water features such as mountain springs and overlapping streams, shallow shoals, deep streams, and Tanhai dark rivers. There are colorful fish swimming in the water, as well as rare giant salamanders (Salamanders). )haunt. The riverbed in Xiaojiuzhai is composed of a flat piece of red sandstone. This kind of gentle, thick red sandstone developed in the Mesozoic Era. It develops vertical joints and is a typical representative of the Danxia landform in the Tiantai Mountain Scenic Area. This is a good place for water sports such as mountain water running and water tug-of-war in the Tiantai Mountain Scenic Area.