Head to Las Ramblas. You may need to grab a cab depending on what pier you dock at.
You can wander Las Ramblas and enjoy the restaurants, sights and shops. You can also jump on the Tourista bus (I think it's around 18 Euros) and you can go all around the city and see all the major sights such as: Sagrada Familia (sp?) cathederal, Gaudi Museum, Gothic District....etc.
I love Barcelona. It's a great a place to spend time.
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newbies going over seas. would like to meet a tour company
at the dock and go from there and be drop off at dock. the cruise is rci/voyager of the seas. can you recommend a tour company and how to contact them.