Porthmadog Harbour – The Cob Causeway loop from Blaenau Ffestiniog

Porthmadog Harbour – The Cob Causeway loop from Blaenau Ffestiniog

Moderate

5.0

(1)

riders

Porthmadog Harbour – The Cob Causeway loop from Blaenau Ffestiniog

02:13

47.1km

520m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is right next to a parking lot.

Last updated: August 22, 2026

Tips

Includes a segment in which cycling is not permitted

After 25.9 km for 144 m

Waypoints

Start point

Parking

Get Directions

4.30 km

Country Road Along the River in Parc Cenedlaethol Eryri

Highlight (Segment) • Viewpoint

As always great scenery with fresh air some decent climbs well worth it.

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8.26 km

Coed Camlyn

Forest

14.4 km

Pont Briwet Bridge and Estuary

Highlight • Bridge

Pont Briwet is a road and railway bridge which crosses the River Dwyryd. Built in the 19th century by the Cambrian Railway Company, the bridge is a rare example of a Victorian-era wooden road and rail viaduct. As the bridge was deemed unsafe from 2013, a new bridge was built including a cycle lane.

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23.6 km

Coed Tan-yr-allt

Forest

26.0 km

Porthmadog War Memorial and Viewpoint

Highlight • Viewpoint

26.7 km

Porthmadog Harbour Town

Highlight • Viewpoint

Porthmadog is simply a busy hub, a gateway to the Llyn Peninsula and Snowdonia National Park. It is a lovely harbour town with a gorgeous mountain backdrop. It also has a good range of shops and attractions including nearby Portmeirion, a narrow-gauge railway, a normal railway and guess what...an excellent hands-on railway museum!

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27.0 km

Porthmadog Harbour

Highlight • Settlement

The marina is important to the city and remains a vibrant, vibrant center of activity. Porthmadog has an attractive harbor and attracts sailors and pleasure boaters from all over Europe who are keen to enjoy the beautiful coastline and explore the surrounding countryside. With ample moorings, maritime services and a lively atmosphere, it is one of the most popular moorings in Wales.
(Harbor guides)

Translated by Google •

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27.1 km

Porthmadog Harbour Railway Station

Highlight • Structure

The current stone buildings date from 1878/79 and replace earlier wooden buildings that had been dismantled and reused elsewhere on the railway. The goods shed was added in 1880. In 1975 the buildings were connected by a major extension. Passenger facilities include a booking and information office, a large tourist and hobby shop and a restaurant with bar. The platform canopy was completed in 1988.
Harbor Station is the headquarters and operational headquarters of the Festiniog Railway Company, commonly known as Ffestiniog and Welsh Highland Railways.
(Wikipedia)

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27.3 km

The Cob Causeway

Highlight (Segment) • Bridge

This mile-long causeway crosses River Glaslyn as it reaches the estuary. Opened in 1811, this causeway carries the Ffestiniog Railway as well as an A road and a cycle path. Riding along here gives you fantastic views north to Snowdonia’s mountains and across the wetlands of the River Glaslyn. A wall entirely blocks your view south to the estuary, but you won’t care because the mountains are so beautiful from here.

The cycle path is traffic-free so you can easily stop whenever you like to soak up the views.

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