The barcelona city sightseeing hop on hop off tour has three different tour routes to explore the city see the major sights aboard our open top double decker bus and with over 44 stops to choose from you can hop on and hop off all around the city spend as much or as little time at places of interest before jumping aboard for the next stop the choice is yours the ticket is validfor 2 days with a choice of 3 routes full tour duration 120 minutes on the blue and red routesand 40 minute