It has an extension of 18.417 hectares in the northwest bank of the Rio Tempisque, at the extreme end of the Golf of Nicoya, some 30 Km to the west of Cañas and 30 Km to the south of Bagaces. It is an important sanctuary for water birds and those from the forest; it has mangroves, lagoons and forests. Close to 150 species of trees and rock peaks that serve as excellent view points. You can see herons, storks, garzones soldados; Espátulas menores, garcillas, ibis, zampullines and ducks; There is also close to 300 species of birds in the park. On land you can see the purple guacamaya, piuríes, rainbow billed toucan, parrots, crocodiles, iguanas, deer, coyotes, monkeys and the peccary.
Ph (506) 2671-1062. Entry costs 6 US$ and is valid for the whole day. There are guided tours of 1/2 to an hour. Adults 15/ 30 US$; children 10/ 20 US$.