Changes

==== Option 1: AP-7 Motorway Service Station Porta de Barcelona (Castellbisbal) ====

From the train station, go left and take the dirt road that leads out and cross under the railway tracks on your right. Walking on this road, you'll come across a surfaced road on your right, that will lead to a bigger road. When you reach this bigger road, you'll see a bridge on your right. Turn left here, and then immediately to the right, to a small street, at the end of which you can see a "stop" sign from the distance. Go straight until it turns into a dirt road, keep going on the dirt road until you reach the petrol station. There will be other roads left and right, ignore them. This whole walk from the station to the service station shouldn't take you much more than 30 minutes (besides, you can find signs on the last road that directly takes you to the service station, showing you that you're on the right way to the "área de servicio").