Does anyone know what the train service is like between Porto and Regua . we were thinking about organising a twin centre hotel next May staying in Porto on the day our flight lands (good old Easy Jet) and the taking the supposedly scenic train trip to Regua where we would stay for 2 nights before returning to Porto for another couple of nights.We usually take package holiday but now we have just retired were thinking making up our own package. Any advise or he;p would be appreciated