Benagil Sea Cave in the Algarve is a true natural wonder. It is a sea cave with a natural occurring oculus that towers over its own secluded beach. At the right time of day the Sun casts light through this dome, illuminating a stunning scene. The Benagil Cave is just down the way from Benagil Beach in the small fishing village of Benagil. The cave has two arched entrances to the ocean, an impressive skylight from above and a beautiful beach contained within. The cavern itself is much larger than would be expected from seeing it either from above or from outside. It’s the sort of location pirate stories are made from. The Algarve coastline, where the cave is located, has many imposing caves, cliffs, rock formations and white beaches.