The Vale of Rheidol Railway runs between Aberystwyth and Devil's Bridge on a narrow-gauge line that climbs through wooded valley scenery. It turns a simple day trip into a slower, more satisfying outing.
The line is especially useful if you do not want to drive the narrow local roads or worry about parking near the falls. Check the timetable before setting out, since the service is seasonal and the return train shapes the whole day.