Train to Placa de catalunya inthe centre of Barca. Then take the tourist bus or if you just want the stadium it might be cheaper to take a taxi there and back.

thank you very much for the prompt reply.

Hi,

I wouldn't have thought a taxi would be cheaper - it's about a 2 hour journey to Barcelona. We went a year & a half ago on a trip with the tour operator, we were unlucky as we were leaving just as the Barcelona players were coming out from training into their coach!

I think they meant . take a train into Barcelona and then get a taxi from the station to the Nou Camp

That's what I meant.

ok. I'll take a train to the center of Barcelona. I think to take a subway #5 to get to the Camp Nou. I've entered in their rout and time-table and saw that the line#5 goes to the stadium.