Baisha Islet Introduction
The geological landscape is diverse, with beautiful white sandy beaches in the south, typical of a sandbar topography, as well as tofu-shaped tidal rocks and potholes formed by seawater erosion. The eastern coast features uniquely shaped columnar basalt that appears in both tower-like and curved formations. Departing from Baisha Qitou Port and heading northeast, approximately four kilometers north of Niao Island, one can see an island with a large sandy beach, known as "Xiao Baisha Yu" (Little White Sand Island). This beach is a typical sandbar formation, not very long but thick and abundant in sand; it was once a source of sand during the construction of Niao Island, but after being designated as a preserve, sand extraction is no longer permitted. Looking from the southwest sea of the island towards Xiao Baisha Yu, it resembles a cat lying in the sea, which the residents of Niao Island call "Mao Yu" (Cat Island). This Mao Yu is different from what we generally refer to as Cat Island in the South China Sea. The lava platform in the southern part of the main island is about 15 to 20 meters high and stretches approximately 250 meters from east to south, with well-developed columnar basalt. The volcanic neck formation on the eastern coastal cliffs is about 20 meters high, imposing in its presence. Along the eastern coast, there is a curved rock vein on the sea erosion platform, nearby lies a low-lying volcanic crater topography. On the western sea erosion platform, there is a tidal rock shaped like tofu due to seawater erosion, reflecting the potholes scattered around it, making it quite interesting. Since Xiao Baisha Yu is a preserve, landing on the island is not allowed without a permit; thus, the Roseate Tern, White-browed Tern, and Crested Tern choose to inhabit this area. During late spring to early summer, they breed at different locations on the island, with the White-browed Tern nesting in the rocky areas, while the Roseate Tern and Crested Tern choose the grassy areas, all intermingling without disturbance as they court, mate, lay eggs, rear chicks, and forage, creating a remarkable breeding scene that is a highlight of each year. Whenever boats sail through this sea area, enjoying the picturesque sight of the island and flocks of terns soaring is truly one of life's great pleasures.
