Introduction to the mountain gate: In front of stands a wooden archway with four pillars and three bays. It has the characteristics of national architectural art and has four characters "Haizang Zen Forest" written on it. In the past, whenever the sun rose in the east in summer and autumn, and the morning light filtered through the dense woods, you would see from a distance under the southeast eaves of the archway, a wisp of green smoke curling up, appearing and disappearing, commonly known as: "The Sea". The scenery is magical and wonderful, such as "Hidden Smoke Willow" and "Sunrise Cold Smoke".