Sanzhai Valley Forest Park is located at the intersection of Nankun Mountain, Longmen County, Huizhou. The territory is surrounded by mountains on three sides, flowing springs and waterfalls, and has a natural oxygen bar with perfect ecology. Its air negative ion content is high, and the forest coverage rate is large. Here, tourists can breathe pure air and feel the breath of nature. It is a rare natural oxygen bar with beautiful environment and fresh air, which can wash away the dust in the city for tourists. While enjoying the beautiful natural scenery, you can also visit many scenic spots such as Marriage Bridge, Cactus, Dragon Tree and Waterfall. A major feature of Sanzhai Valley is the river stone group. After years of scouring, the river stones have become round and round like steamed buns piled together. Except for the faults, the stones are hard to see. The surface is wrinkled and smooth, as if it has been closely connected with the river for thousands of years. The water of the river is crystal clear, the water is full of boulders, and the river is everywhere. Some people put a pair of stones on the shore that look like people with one hand and one foot, called "Sibling Love Stone". Two gray boulders, one high and the other low, were erected on the side, which is quite the taste of brotherhood.