According to the CP site, I can board a train at Alcantara-Mar to ALcantara-Terra and switch at Campolide station to Sintra. Is this correct? I ask since other contributors to the forum said you cannot do this. The rail map has a dotted line between the Alcantara Mar and Terra station with no explanation. I had assumed the dotted line meant the rail was under construction. Any help would be welcomed. We would like to get to Sintra from either of the two stations. Thanks.