IF YOU ARRIVE BY TRAIN
If you arrive by train, you can get off at "Sants Station", then get the green line subway( line3) to "Liceu" station, the youth hostel is just 100 meters from it.
It is very easy to arrive to the CENTRE-RAMBLAS from "Catalunya Square", is just 10 minutes walking down the "Ramblas", or just one station at the subway green line.
IF YOU ARRIVE BY PLANE
If you reach the city by plane you cant take the AEROBUS or the train, both of them will leave you at "Catalunya Square", from where you can take the subway or just walk.
IF YOU ARRIVE BY BUS
If you get to the "Estació del Nord" bus station, get the underground (red line) towards "Feixa Llarga" and change to the green line in "Plaça Catalunya",then leave the train at the "Liceu" stop.
If you get to the "Sants Estació", get the underground (red line) then leave the train at the "Liceu" stop.