Founded in the early 19th century to carry slate, the Ffestiniog Railway starts at the quayside and climbs up 700 feet through a wooded vale, past a waterfall, and across the mountains. The northern terminus is in Blaenau Ffestiniog, where you can visit an old slate mine. The Ffestiniog Railway is perhaps the best of several small steam lines in this part of the country. Porthmadog gets very crowded in summer, and parking is limited, so you might want to make this journey from Blaenau Ffestiniog to Porthmadog instead. Call to check the daily timetable.