Bahía de San Vicente is a significant coastal bay located in the Biobío Region of Chile, near the city of Concepción. It forms part of a larger bay system alongside the Bahía de Concepción, with its waters defined by the coordinates 36°44' S, 73°10' W. The bay is a center for port activity and supports a diverse coastal ecosystem, making it a destination for anglers seeking a variety of nearshore and inshore species. Its geography includes notable points like Punta Gualpén and Punta Lilomo, and it features sandy beaches such as Playa Lenga, which provide accessible shore fishing opportunities. The area's oceanographic conditions and benthic habitats create a productive environment for both recreational and commercial fishing.