Take a scenic drive through the residential area of Manga, and admire the beautiful mansions built in Republican-style architecture at the end of the 19th century. Explore the Castillo San Felipe de Barajas, a fort that was once the most important military structure built in Latin America. Enjoy a boat ride to the Islas del Rosario, 26 coral islands located off the coast of Isla Barú, and continue to the island of San Martín de Pajarales to visit the aquarium. Enjoy a spectacular dolphin and shark show and other marine attractions there. Board the beautiful Spanish Galleon, a replica of a 17th-century sailing ship, for a cruise of the inner bay of Cartagena.