수성동계곡
Su Seongdong Valley is a valley that flows down from Inwangsan Mountain and joins Cheonggyecheon Stream. It is said that the neighborhood was called Su Seongdong (水聲洞) during the Joseon Dynasty because the sound of the water in the valley was loud and clear.
由近到远 · 距离为直线距离，实际步行会更远。