Gubo Island Introduction
Guishan Island is located northwest of Baisha and southwest of Jibei Island. It is a tableland formed from basalt, measuring about 1 kilometer long from south to north, and is the largest uninhabited island in the Penghu archipelago. The island features porous basalt in many areas, with a surface layer covered in iron-rich quartz sandstone, creating a striking contrast. Guishan Island is part of Baisha Township in Penghu County, Taiwan, and it is the largest uninhabited island in the North Sea. The island runs north-south, approximately one kilometer in length, primarily comprising four land masses and three small isthmuses forming a tableland. The northern coast features a large wave-cut platform, while the east coast has a natural white sandy beach bay at both the north and south ends. On Guishan Island, there is a "British Shipwreck Memorial" at the highest point of the island. The northern coast's wave-cut platform, affected by waves for years, is a renowned natural production area for nori, known for its high quality. Each winter during the harvesting season, the villagers from Cikang gather in boats to collect nori, creating a lively scene reminiscent of a bustling seafood market. Guishan Island is famous for its wild nori production, which locals refer to as "black gold." The northern side of Guishan Island is a natural wild nori area, completely pollution-free. The nori growing season lasts from the end of October to the end of March the following year. In winter, due to strong northeast monsoons, the crashing waves promote nori growth, making winter the harvesting season, also known as the "picking black gold" season. The waters between Guishan Island and Baisha Island are the largest fishing grounds for the silver-stripe round herring (Dingxiang fish), with the peak fishing season from April to September. In May, during the herring spawning period, fishing for Dingxiang fish is banned to ensure ecological continuity.
