The Besaya valley (Spanish: Valle del Besaya) is both a comarca located in the center of Cantabria, along the course of the Besaya River, and the natural valley of said river. Its capital is Torrelavega. This is a list of the comarques (singular comarca) of Catalonia. ... Anthem: Himno de Cantabria Capital Santander Official language(s) Spanish Area â Total â % of Spain Ranked 15th 5,321 km² 1. ... Torrelavega is a town and municipality in the province and autonomous community of Cantabria, northern Spain. ...