Everyone here talks about t-10 tickets and not about travel cards.
if i have 5 day travel card (this one: tmb.cat/en/bitllets-i-tarifes/-/bitllet/52 )
it means that i have to validate it just first time and next time do nothing, right??
Also Im not sure about zones. Is this just for zone 1? Can i go to Castelldefels with this card?