Tingkou Islet Introduction
About 1 kilometer southeast of Jishan Island, you can see the four islands known as Dinghou Islets, which are composed of basalt reefs. These rock formations were shaped into various directions of columnar joints after the magma flowed out. Over time, through marine erosion and weathering, nature has sculpted the rocks in this area into more refined and unique shapes, earning it the beautiful reputation similar to that of the Li River. The undulating topography has created many marine erosion columns, and between these columns, a rare scenic wonder known as "Yixiantian" (One Line Sky) is formed. This extraordinary view evokes a feeling of "this sight only exists at Dinghou, nowhere else in Penghu can one find it." The entire Dinghou Islets are made up of dense columnar basalt, dark in color, and like Jishan Island, basalt often contains inclusions of olivine. In winter, the island's reefs, similar to those of Jishan Island, are covered with natural seaweed, which is a shared agricultural resource owned by nearby villages and often brings considerable wealth to the residents. Due to the island being part of a reserved area, human interference is minimal. In summer, nearly a thousand white-browed terns choose this area as their breeding ground, making it the most important habitat for white-browed terns in the north of Penghu. By taking a boat to the nearby waters, one can easily enjoy the graceful dance of the white-browed terns.
