Pont Marquis – Afon Cefni River Trail loop from Rhydwyn

Bike touring routes & trails

Pont Marquis – Afon Cefni River Trail loop from Rhydwyn

Hard

riders

Pont Marquis – Afon Cefni River Trail loop from Rhydwyn

04:25

72.6km

470m

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: September 16, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Tirwedd Cenedlaethol Ynys Môn

SoDdGA Cors Ddyga

Waypoints

Start point

Bus stop

Get Directions

387 m

Winding Country Lane in Tirwedd Cenedlaethol Ynys Môn

Highlight • Trail

21.0 km

Llyn Cerrig Bach

Highlight • Historical Site

A spectacular spot not just for the scenery, bit as its next to the RAF base you have a good chance to spot some of the jets coming in and out.

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21.5 km

RAF Valley Aircraft Viewing Area

Highlight • Viewpoint

RAF Valley on Anglesey is home to No 4 Flying Training School, responsible for training the UK's next generation of world-class fighter pilots.

Safely watch aircraft at RAF Valley from …

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40.4 km

Pont Marquis

Highlight • River

Pont Marquis Bridge
Spanning the Afon Cefni, carrying the Trefdraeth to Llangaffo road, c. 3km ENE of Malltraeth. The bridge, which is Grade II listed, was built in the early …

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44.7 km

Lon Las Cefni cycle path along the Afon Cefni

Highlight • Cycleway

Komoot suggests that road bikes may not be suitable, you might have to stop and push across the road but it's fine and legal under your wheels.

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46.8 km

We rode from the North back to Llangefni and so rode along the impressive reservoir at the top of the valley then cruised all through the woods to the town itself on a smooth very rideable track. Beautiful and quiet.

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48.6 km

The Dingle (Nant y Pandy) Nature Reserve

Nature Reserve

50.4 km

Llyn Cefni Reservoir and Dam

Highlight • Structure

Llyn Cefni is a reservoir in central Anglesey. It's managed by Welsh Water. It was completed in 1951 and supplies water to most of Anglesey.

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66.5 km

Llynnon Mill

Highlight • Historical Site

Also known as Melin Llynnon, Llynnon mill is the only working windmill on Anglesey. Next to the mill, you can visit a reconstruction of an Iron Age Settlement which would …

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