Cartagena is home to one of the best diving spots in the Caribbean, a well-protected coral reef barrier that stretches around the paradise islands of Islas de Rosario and the National Natural Park of Corales del Rosario and San Bernardo Corals. It is located within an hour from the city center. Divers can expect to see a wide variety of marine life in Cartagena, including: Reef fish: angelfish, butterflyfish, damselfish, parrotfish, surgeonfish, and more. Sharks: nurse sharks, reef sharks, and even the occasional hammerhead shark. Sea turtles: green sea turtles, hawksbill sea turtles, and loggerhead sea turtles. Rays: eagle rays, stingrays, and even manta rays. Dolphins: dolphins are frequently spotted in the waters around Cartagena.