Ключевые слова: beautiful, canal, cascade, concrete, construction, control, dam, development, district, energy, environment, flood, flow, flowing, fresh, grass, green, hill, laeng, landmark, landscape, mountain, nan, natural, nature, outdoors, overflow, pua, reservoir, river, rural, sila, stair, stream, structure, summer, technology, thai, thailand, travel, tree, wang, water, waterfall, weir,