Chincha Islands

The Chincha Islands (Spanish: Islas Chincha) are a group of three small islands 21 kilometres (13 mi; 11 nmi) off the southwest coast of Peru, to which they belong, near the town of Pisco. Since pre-Incan times they were of interest for their extensive guano deposits, but the supplies were mostly exhausted by 1874.

Source: Wikipedia (CC BY-SA 4.0) — https://en.wikipedia.org/wiki/Chincha_Islands