Afon Cefni River Trail – Stone bridge over the River Cefni loop from Tynygongl

Bike touring routes & trails

Llanfair-Mathafarn-Eithaf

Afon Cefni River Trail – Stone bridge over the River Cefni loop from Tynygongl

Moderate

4.3

(3)

riders

Afon Cefni River Trail – Stone bridge over the River Cefni loop from Tynygongl

02:26

41.2km

190m

Cycling

Moderate bike ride. Good fitness required. Mostly paved surfaces. The starting point of the route is accessible with public transport.

Last updated: August 17, 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

12.0 km

Afon Cefni River Trail

Highlight (Segment) • River

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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14.6 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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18.9 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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22.0 km

The Cob Path and Cefni Estuary Views

Highlight • Viewpoint

The Cob (about a mile in length) is an elevated tarmac footpath/cycle trail which runs parallel to the road but about 150 feet (50 m) from it.

It provides excellent …

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22.1 km

View of Malltraeth Cob and the estuary

Highlight • Structure

Malltraeth Cob
Malltraeth is the next village along from Newborough to the north. The two villages are linked by a “cob” – a dike wall – with a footpath/cycle track …

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31.0 km

Ynys Cefni

Highlight • Lake

32.6 km

Llangefni Clock Tower

Highlight • Structure

Llangefni (meaning "church on the River Cefni", Welsh pronunciation: [ɬaŋˈɡɛvni]) population 5,116, making it the second-largest town in the county and the largest on the island. The community includes the …

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37.0 km

Yr Adwy Goch

Ruins

41.2 km

End point

Bus stop

Way Types & Surfaces

Way Types

25.7 km

15.5 km

< 100 m