From Lake Castor (km. 51 from Coihaique) travel another 19 kilometres up the road to Coihaique Alto. A right turn leads to 4 km Dos Lagunas Natural Monument, a small area of forest of lenga with El Toro and Escondida lagoons, habitat of many wild birds such as mallard and black-necked swan. There are ranger, interpretation trails and picnic tables. Economic input. Visiting hours: 8.30 am to 21 pm from December to March, until 18.30 the rest of the year.