On the evening of 5 January, Barcelona organises a big welcome for the Kings of the Orient, who set off on a big parade through the city’s streets, followed by a long procession of royal pages, floats and groups of artists, dancers, postmen and others formed by members of any Barcelona associations and organisations that wish to take part.
Since the 1960s the Three Kings have arrived by sea and been welcomed at the quayside by the Mayor, who gives them the key to the city, just for one night, so they can open the doors to all the houses in Barcelona.
In fact, boys and girls across the country really look forward to the parades that every town holds on this evening, and they hope Their Majesties won’t forget to pass by their house and leave the presents they have asked for.
http://lameva.barcelona.cat/culturapopular/en/festivals-and-traditions/three-kings-parade