Nationaal Park El Cajas Visit and trek in El Cajas National Park for a glimpse at lagoons and exotic fauna and flora. El Cajas is a national park located on the northwest side of the city of Cuenca. It’s formed by wetland from glacial origins with more than 200 lakes. The area is home to a large variety of animals, some of which are endemic or highly endangered such as the South American condor, raptors, hummingbirds, pumas, bats, foxes, many amphibians, insects and many more. The park and its surroundings are also famous for its trout population.