Beyond the Monument a Colom—behind the Duana, or former customs building (now site of the Barcelona Port Authority)—is the Rambla de Mar, a boardwalk with a drawbridge. The Rambla de Mar extends out to the Moll d'Espanya, with its Maremagnum shopping center, IMAX theater, and aquarium. Next to the Duana, you can board a Golondrina boat for a tour of the port, to go up the coast to the Olympic Port, or to go to the Fòrum complex at Diagonal Mar. From the Moll de Barcelona's Torre de Jaume I, just to the southeast, you can catch a cable car to Montjuïc or Barceloneta.
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