E-mail I think they should go sightseeing,because Barcelona has got an important places such as: La sagrada familia,El Parque Guell,La casa Batlló...,but you should be careful because the tourist places have got lots of robbers.I remember one time,when I was in the main street of Barcelona,somebody stole my handbag,for this reason I lost all my money and my cards.In addtion If I were you,I would go to the Barceloneta,because you will have a good time. I think the bes way of travel is around car,because car is cheaper than other ways,because you can divide the petrol price between four peple.In addition the tourist places are far each other,so going by car is the best idea. Barcelona has got special parties and festivals,for example: they can go to the food festival and summer fair.In my opinion this events are different and special because you can taste other type of food.Also,every 24th of August si the sports day.Last year Barcelona celebrated the holy run.It was awesome!