菲英岛, also known as Pag-asa Island, is a small island located in the Spratly Islands in the South China Sea. It is part of the Philippines and serves as a strategic location for both military and civilian purposes. The island has a small population and is primarily used for fishing and research activities. The island is home to a weather station and a small military presence, reflecting its importance in regional security. It is also a site for environmental studies, particularly concerning marine biodiversity in the surrounding waters. Access to 菲英岛 is limited, and it is often a topic of geopolitical discussions in the region.