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National Cycle Network Route 8 – Caernarfon Castle loop from Porthmadog

Routes

Bike touring routes & trails

National Cycle Network Route 8 – Caernarfon Castle loop from Porthmadog

Hard

4.9

(7)

riders

National Cycle Network Route 8 – Caernarfon Castle loop from Porthmadog

04:38

75.8km

660m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: August 6, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc Cenedlaethol Eryri

Waypoints

Start point

Train Station

Get Directions

2.52 km

Penmorfa Forest Path

Highlight • Trail

A nice section of forest path in amongst gorgeous woodland. It gets a tad narrow in places but a very nice bike section.

Tip by

15.9 km

National Cycle Network Route 8

Highlight • Cycleway

18.9 km

View of Mount Foel

Highlight • Viewpoint

A beautiful cycle path through farmland with traditional stone fencing and a view over the rolling countyside and Mount Foel.

Tip by

28.7 km

A medieval fortress situated on the on the banks of the River Seiont, Caernarfon Castle has protected Caernarfon since the 11th century. The magnificent castle is open to visitors from 9.30am - 5pm (last admission at 4.30pm). Tickets costs £9.90 for adults. You can find out more information about events at the castle here: cadw.gov.wales/daysout/caernarfon-castle/?lang=en

Tip by

35.3 km

Welsh Highland Railway Steam Locomotives and Station

Highlight (Segment) • Monument

Pretty little train station

Translated by Google •

Tip by

42.0 km

Lôn Eifion Cycleway

Highlight • Cycleway

The Lôn Las Menai & Lôn Eifion cycleway follows an old railway trail from Caernarfon to Bryncir. If you decide to ride the whole route, it's 16.6 miles (27 km).

Tip by

61.6 km

David Lloyd George Memorial Site

Highlight • Historical Site

David Lloyd George was an influential British politician and Prime Minister of the UK from 1916 - 1922. Following his death in 1945, he was buried at the David Lloyd George Memorial Site in Llanystumdwy Gwynedd on the banks of the River Dwyfor.

Tip by

75.8 km

End point

Train Station

Way Types & Surfaces

Way Types

39.5 km

30.4 km

3.59 km

1.76 km

398 m

< 100 m

Surfaces

69.3 km

3.52 km

1.99 km

897 m

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (150 m)

Lowest point (0 m)

Weather

Wednesday 26 August

21°C

16°C

-- %

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Comments

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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National Cycle Network Route 8 – Caernarfon Castle loop from Porthmadog

Penmorfa Forest Path

National Cycle Network Route 8

View of Mount Foel

Bench on Lon Eifion

Caernarfon Castle

Welsh Highland Railway Steam Locomotives and Station

Lôn Eifion Cycleway

David Lloyd George Memorial Site

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