Central Park of Tres Cantos Nature · Tres Cantos, Área Metropolitana, Madrid Forty-five hectares in the heart of this planned town, with a large artificial lake full of birds and fish and a themed garden divided into twelve settings: rose garden, palm grove, bamboo, conifers, aromatic plants and rockery. Photo: Cruccone (CC BY 3.0) What to see and do in Tres Cantos