At a glance
The world's oldest surviving narrow-gauge railway — 13.5 miles of spectacular Snowdonia scenery from Porthmadog Harbour to Blaenau Ffestiniog, preserved by volunteers from 1955. Adult return from £35. Connects with the Welsh Highland Railway at Porthmadog.
About the Ffestiniog Railway
The Ffestiniog Railway was built between 1833 and 1836 to carry slate from the quarries around Blaenau Ffestiniog down to the harbour at Porthmadog — a distance of 13.5 miles on a 1ft 11½ inch (597 mm) narrow gauge. The route descends 213 m from Blaenau to sea level, and the original slate trains ran downhill by gravity, with horses returning the empty wagons uphill. Steam locomotives were introduced in 1863.
Slate traffic ceased in 1946 and the railway was threatened with permanent closure. In 1955 — four years after the Talyllyn Railway became the world's first preserved railway — a group of enthusiasts formed the Festiniog Railway Society and reopened the line. The railway expanded gradually, building the famous Dduallt spiral loop in 1968 to regain height around a reservoir flooding the original route, and finally restoring the full length to Blaenau Ffestiniog in 1982.
Today the Ffestiniog Railway operates year-round with a mix of steam and diesel traction, carrying over 200,000 passengers annually through some of the finest mountain scenery in Wales. It connects at Porthmadog with the Welsh Highland Railway (operated by the same company) to form the longest heritage railway network in Wales — 38.5 miles of combined route.
Highlights of the journey
- The Cob embankment — The dramatic 1-mile embankment across Traeth Mawr estuary from Porthmadog — built 1811, with sea on one side and mountain views on the other.
- Tan-y-Bwlch station — A picturesque intermediate station with refreshments, surrounded by mature woodland — a popular alighting point for walks.
- Dduallt spiral loop — The only spiral on a passenger railway in the UK — the train completes a 360° loop to gain height, a remarkable piece of 1960s railway engineering.
- Moelwyn scenery — The upper section winds through dramatically steep mountain country between the Moelwyn peaks and Tanygrisiau reservoir.
- Blaenau Ffestiniog — Journey's end — a slate quarrying town surrounded by enormous tips and the home of Llechwedd Slate Caverns.
Practical information
Getting to Porthmadog
Porthmadog has a station on the Cambrian Coast Line from Pwllheli and Machynlleth — a 10-minute walk from the Ffestiniog Harbour station. By road, take the A487 from Caernarfon or Dolgellau, or the A498 from Beddgelert. Parking at the Harbour station is pay & display.
Freedom of the Railways pass
A Freedom of the Railways pass covers unlimited travel on both the Ffestiniog and Welsh Highland Railways — excellent value for a full day exploring both lines. Available at festrail.co.uk or at the Porthmadog booking office.
Find it on the map
Frequently asked questions
No. The Ffestiniog Railway was preserved in 1955 — making it an early and historically important preservation. But the world's first preserved railway is the Talyllyn Railway, which was saved by volunteers in 1951, four years before Ffestiniog. Both railways run in close proximity in this part of Wales.
The full journey from Porthmadog to Blaenau Ffestiniog is 13.5 miles and takes approximately 60 minutes. Some trains stop at intermediate stations including Minffordd, Penrhyndeudraeth, Tan-y-Bwlch, Dduallt and Tan-y-Grisiau. A return trip is approximately 2 hours 30 minutes excluding any time at Blaenau.
Yes — both railways are operated by Ffestiniog & Welsh Highland Railways and share Porthmadog Harbour station. You can travel on both in the same day with a through ticket or a Freedom of the Railways pass. The Welsh Highland Railway runs from Porthmadog northwest to Caernarfon (25 miles), while the Ffestiniog goes northeast to Blaenau Ffestiniog.
Excellent for families — the narrow-gauge carriages are charming, the scenery is dramatic, and the journey is the right length (about an hour) for young children's attention spans. There are refreshments on most trains. Interactive activities for children are often available. Porthmadog Harbour station has a café and gift shop.
The section from Tan-y-Bwlch to Blaenau Ffestiniog is the most dramatic — the railway winds around the famous Dduallt spiral loop (the only spiral on a passenger railway in the UK), passes the Moelwyn lakes and descends into the slate town of Blaenau Ffestiniog surrounded by enormous slate tips. The Cob across Traeth Mawr at the Porthmadog end is also memorable.
Advance booking is recommended for summer weekends (July–August) and school holidays. The railway runs year-round but with a reduced timetable November to March. Book at festrail.co.uk. Walk-up tickets are often available on the day in quieter periods but popular services can sell out at peak times.