Beaches inside Barcelona are dirty and crowded. Come play outside instead. Catch the R1 train from plaça de catalunya (enter at the station in front of El Corte Inglés) in direction Mataró. Get off at Ocata. The water is super clean, sand grainy and you can go swimming without worrying about your bag and phone the whole time. There are a few bars out here where you can have cold beer, patatas bravas, salads, and even vegan burgers. #beach