My daughter and I are visiting Barcelona for 3 nights in May. Can anyone give me any details of any half day guided bus tours that would give us a feel of Barcelona when we arrive. I'm not big on site seeing but would like to visit some of the sites but don't want to spend hours at each one. A friend who visited Barcelona last year told me she had done this type of excursion for about 3 hours and visited some of the main sites in Barcelona. Does anyone know of any such tour that we could book and the approximate cost?