ROSARIO ISLANDS, Colombia - A trip to Cartagena is not complete without a visit to the nearby Rosario Islands. Coralina Island, a small, family-run boutique hotel is just a quick 60-minute boat ride from Cartagena. A little bit Robinson Crusoe with a touch of Gilligan’s Island mixed in, Coralina Island is a rustic retreat surrounded by the warm waters of the Caribbean Sea. A true getaway from the hustle of the city, a stint at this lovely hotel should be part of every Cartagena travel itinerary.