"Sanmenhai, Hechi".

In the landscape painting of Hechi, Sanmenhai is like a green gem carefully carved by time. Sanmenhai has a unique karst landform. The underground river skylight group here is a spectacle, and the blue river water under the skylight is shining with a mysterious luster. Those skylights are like the eyes of the earth, peeping into the mysterious world of the underground dark river. Taking a boat through the underground river is like entering a magical underground palace. The river is winding and winding, and the strange rocks on the cave wall are rugged. Some are like beasts, some are like immortals pointing the way. Under the light, they present colorful colors. The surroundings are quiet and mysterious, and only the sound of the paddle stirring the water echoes in the ears. The water of Sanmenhai is clear and bottomless, and green as jade. The light and shadow on the water sway gently with the waves, and the stalactites under the water are clearly visible, forming a beautiful underwater painting. The scenery on the water is also intoxicating. The surrounding green mountains are undulating, the trees are shaded, and they are set against the clear river. Here is far away from the hustle and bustle of the world, and the air is exceptionally fresh. Whether it is in the early morning, watching the faint mist lingering in the mountains, or in the evening, admiring the afterglow of the setting sun dyeing the mountains and rivers with golden colors, Sanmenhai shows its quiet, natural, and ethereal unique charm. It is an excellent place for people to explore the mysteries of nature and enjoy quiet time.