The Galápagos Islands are an archipelago located in the Pacific Ocean, about 600 miles west of Ecuador. Comprising 13 main islands and numerous smaller islets, they are known for their unique biodiversity and volcanic landscapes. The islands are a UNESCO World Heritage site and are famous for their role in Charles Darwin's theory of evolution. Home to various species, including the Galápagos tortoise and the marine iguana, the islands offer a glimpse into natural selection and adaptation. The Galápagos National Park protects much of the archipelago, making it a popular destination for ecotourism and scientific research.