Suances is a municipality in Cantabria Province, Spain. Suances is located in the central coast of Cantabria, in the Ría de San Martín de la Aren…Suances is a municipality in Cantabria Province, Spain. Suances is located in the central coast of Cantabria, in the Ría de San Martín de la Arena, where the rivers Saja and Besaya flow to the Cantabric sea. Suances has five beaches: La Tablía, Los Locos, La Concha, La Ribera and La Riberuca; and five islands, despite the location of these islands they are part of Suances.