Santa Marta, officially the Distrito Turístico, Cultural e Histórico de Santa Marta, is a port city on the coast of the Caribbean Sea in northern Co…Santa Marta, officially the Distrito Turístico, Cultural e Histórico de Santa Marta, is a port city on the coast of the Caribbean Sea in northern Colombia. It is the capital of Magdalena Department and the fourth-largest urban city of the Caribbean Region of Colombia, after Barranquilla, Cartagena, and Soledad. Founded on July 29, 1525, by the Spanish conqueror Rodrigo de Bastidas, it was one of the first Spanish settlements in Colombia, its oldest surviving city, and second oldest in South America. This city is situated on a bay by the same name and as such, it is a prime tourist destination in the Caribbean region.