The Ballestas Islands consist of the three islands of North, Center and South and some scattered rocks in the water. The rough landscape, which consists solely of rock, makes the islands unfit for the human habitation, so they are protected as a natural reserve. Around 180 species of fish and several species of dolphins live in the waters surrounding the islands.
On the islands are colonies of Humboldt penguins, the only species of penguins in Peru, as well as gannets, terns, pelicans and cormorants. The seals of mane and sea lions also settled on the islands.
By the way, the islands are also used economically, but only very rarely, once every five years. This is because many of the waterfowl that live there produce guanina, which, in combination with the calcareous rock, is transformed into guano, the fertilizer not so pleasant but with a natural but totally natural scent. Every five years, the guano layer up to four meters thick is removed and sold.