Trams are available on a total of six routes; there are three routes called ’Trambaix’: T1, T2 and T3. The other three routes are ’Trambesos’: T4, T5 and T6.
Conveniently, you can use the same ticket for the bus and metro. When you board, simply punch your ticket in the machine and this will be valid for one passenger’s journey.
For a trip into yesteryear on a tram, watch this or hop onto the old Tramvia Blau, which rattles up Tibidabo.