Escape the busy streets of Cartagena with a full day on the Rosario Islands. A bus takes your small group to the Colombian coastal town of Barú, where a speedboat whisks you to the picturesque Corales del Rosario National Park. There, sunbathe on unspoiled beaches, swim and snorkel in the azure Caribbean, and relax. There are no cost surprises as the tour includes lunch, hotel pickup and drop-off, park fees, and use of snorkel equipment.