I am looking for train tickets from Barcelona to Sitges in a couple of months. Looking at some local and also aggregator websites, I'm not finding any availability - is this something that you can't book ahead of time, just buy a ticket at the station that day?
Also, I'm seeing info on the rodalies.gencat.cat site that there may be changed service on the R2 Sud line that goes to Sitges due to construction - is that going to make it overly complicated, and maybe make taking the bus (or even a van taxi/uber) a better option? Was hoping to do the train, since I figured that may be better if each person in the group has a couple of bags (a checked bag and carry-on, by airplane standards). TIA for any advice or tips.