 The group of islands is part of Chile's Valparaíso Region (which also includes Easter Island) and, along with the Desventuradas Islands, forms one of the nine communes of Valparaíso Province.The islands are named after Juan Fernandez, the explorer who discovered them in the 1570s.Alejandro Selkirk is the largest of the Juan Fernández Islands at , and its highest peak, Cerro de Los Inocentes, is also the highest point of the archipelago at .