The Lake Sanabria Natural Park Nature · Galende, Sanabria, Zamora Protected as a Sitio Natural de Interés Nacional (a national natural-heritage protection designation) on 7 February 1946 and declared a nature reserve in 1978, it was expanded in 1990 from 368 to 22,365 hectares and again in 2017, to its current 32,302; it is home to more than fifteen hundred plant species and sphagnum peat bogs. Its origin goes back to the coldest phases of the Quaternary, when glaciers shaped the cirques, valleys and moraines preserved today. The lago de Sanabria, the largest of glacial origin on the Iberian Peninsula, covers 318.7 hectares and reaches a maximum depth of 53 metres, and shares its protected status with more than twenty small lakes scattered across the range. The reserve covers the municipal districts of Galende, Cobreros, Trefacio and Porto, ranging from the lake shore's 997 metres to the 2,127 metres of the Peña Trevinca peak. Photo: Stegop (CC BY 3.0) What to see and do in Galende