Introduction to Sanshan Island: Sanshan Zijin'an Island is composed of one large and two small mountain islands. The main island has three mountains, and the other names are Zeshan and Jueshan. The main peak is 81.2 meters above sea level. It was originally home to ten scenic spots, but now only the Guting, Banbi Peak, Dieshi and other scenic spots remain. More than 10,000 years ago, Paleolithic ruins and mammalian fossil remains known as the "Three Mountain Culture" are located on the mountain.