Rosario Islands Day Trip from Cartagena. Escape to the picturesque paradise of the Rosario Islands on a delightful day-trip from Cartagena. Experience the idyllic splendor of the iridescent water and silken sands as you cruise to the alluring archipelago. Plunge into the crystal clear Caribbean waters; recline in the shade of a palm tree on a blissful beach; and visit a local aquarium to discover diverse marine life. Treat your taste buds to a traditional lunch and enjoy convenient hotel pickup on this heavenly excursion. Book this Trip and Save 10%! Rosario Islands Day Trip from Cartagena.