Introduction to Wacun: Along the way to the west along Palong Zangbo, there is a village named "Wacun" ten kilometers away from Ranwu Town. The houses in the village are typical buildings in the forest areas of southeastern Tibet. They are built with a large amount of wood, and even the roofs are paved with wood. At dawn and dusk, the black wooden roofs reflect the light under the slanting sunlight, and the village is filled with a rich collector charm, making it a good place for photography.