At the end of the bay formed by the beaches of El Canelo and El Canelillo, there is the Nature Sanctuary called Islote or Peña Blanca Rock and Punta de Peña Blanca. Located in the commune of Algarrobo, Valparaíso Region, its main rock formation is about 30 meters high and becomes an islet during high tides. The surface of its soil is constituted by a granitic rock mass covered with a layer of guano.
The islet is a relevant natural setting of the area. It has a rich intertidal ecosystem with a great diversity of wildlife species under the rocks. It is also an area of concentration of marine birds, where the following species reproduce: Black Cormorant, Red-winged Cormorant, Pelican, Piquero and Dominican Gull. You can also see species such as Guanay, Cahuil seagull, Zarapito and Black Pilpilen.
