Buracona, Ilha do Sal

At Buracona, you'll find a blue saltwater pool inside a lava-encrusted rock. When sunshine hits this 11 m (36 ft) cache, usually at its highest point, the water shines straight back like a sapphire, resembling a blue eye--which explains the spot's Spanish name. As the ocean pounds into the shore, the natural pool refills with water seeping in through an underground tunnel. The spot is ideal for both swimmers and divers. Make your Ilha do Sal itinerary with Inspirock to find out what to see and where to go.