Tanwang Reservoir Introduction: Tanwang Reservoir is a medium-sized man-made reservoir with a wide and quiet water surface. The surrounding green mountains are like green, and the mountains are reflected on the water together with the blue sky. There is a promenade for tourists to rest on the lakeside. Sitting in the promenade, you can feel the breeze blowing from the water from time to time, and feel relaxed physically and mentally.