The Cíes Islands are a group of three islands located off the coast of Galicia, Spain. They are part of the Atlantic Islands of Galicia National Park and are known for their stunning natural beauty, including pristine beaches and diverse wildlife. The islands are uninhabited, except for a small number of seasonal staff, and are accessible by ferry from nearby cities. The largest of the islands, Monteagudo, features a prominent lighthouse and offers hiking trails with breathtaking views. The Cíes Islands are also famous for their rich marine life, making them a popular destination for birdwatching and eco-tourism.