The Islas Ballestas (Ballestas Islands) are spectacular islands with many caves and arches, which provide shelter for thousands of seabirds and sea-lions. The islands are home to over 150 species of marine bird including the Humboldt penguin, cormorants, boobies and pelicans. Even condors have been known to visit. On the shores can be seen large numbers of sea-lions and in the sea it is possible to encounter dolphins and even whales.