1.44 square kilometers. Sanba Reservoir in Kedong County is located in the middle reaches of Sanba Valley, a tributary of the left bank of Wuyuer River, about 1m west of Kedong County. Sanba Reservoir has beautiful scenery and is a good place for people to relax, play, fish and eat. There are speedboats, sampans and small cruise ships on the surface of the water, and there are many huts in the middle of the water for rest. There are many unique leisure huts on the dam, which are places for tourists to eat and play, with an area of 1.44 square kilometers.