Chile’s 2nd largest island (after Tierra del Fuego in southern Patagonia), Chiloé Island, is a little over halfway down Chile’s Pacific coast and at the northern reaches of Chilean Patagonia. Chiloé Island, the main island in the archipelago of the same name, is in southern Chile. It’s home to pastoral landscapes and known for its iconic wooden churches built by Jesuit missionaries in the 17th and 18th centuries. The northwest coast, where blue whales gather, also has the 3 islets Islotes de Puñihuil, Natural Heritage Site, a Magellanic and Humboldt penguin breeding ground.